1520314000 has 80 divisors (see below), whose sum is σ = 3686482800. Its totient is φ = 606412800.

The previous prime is 1520313973. The next prime is 1520314001. The reversal of 1520314000 is 4130251.

It can be written as a sum of positive squares in 8 ways, for example, as 498360976 + 1021953024 = 22324^2 + 31968^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1520314000² = 4622709317192000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1520314001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897154 + ... + 898846.

It is an arithmetic number, because the mean of its divisors is an integer number (46081035).

Almost surely, 2^1520314000 is an apocalyptic number.

1520314000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520314000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843241400).

1520314000 is an abundant number, since it is smaller than the sum of its proper divisors (2166168800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520314000 is a wasteful number, since it uses less digits than its factorization.

1520314000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1520314000 is about 38991.2041363177. The cubic root of 1520314000 is about 1149.8585837449.

Adding to 1520314000 its reverse (4130251), we get a palindrome (1524444251).

The spelling of 1520314000 in words is "one billion, five hundred twenty million, three hundred fourteen thousand".