1501250000 has 80 divisors (see below), whose sum is σ = 3638857872. Its totient is φ = 600000000.

The previous prime is 1501249987. The next prime is 1501250011. The reversal of 1501250000 is 521051.

It can be written as a sum of positive squares in 8 ways, for example, as 625800256 + 875449744 = 25016^2 + 29588^2 .

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

It is a super-3 number, since 3×1501250000³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1249400 + ... + 1250600.

Almost surely, 2^1501250000 is an apocalyptic number.

1501250000 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 1501250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819428936).

1501250000 is an abundant number, since it is smaller than the sum of its proper divisors (2137607872).

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

1501250000 is an frugal number, since it uses more digits than its factorization.

1501250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1501250000 is about 38745.9675321187. The cubic root of 1501250000 is about 1145.0321304460.

Adding to 1501250000 its reverse (521051), we get a palindrome (1501771051).

The spelling of 1501250000 in words is "one billion, five hundred one million, two hundred fifty thousand".