1513855980 has 504 divisors, whose sum is σ = 6007810032. Its totient is φ = 317447424.

The previous prime is 1513855957. The next prime is 1513855991. The reversal of 1513855980 is 895583151.

1513855980 is a `hidden beast` number, since 1 + 5 + 13 + 8 + 559 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 9287379 + ... + 9287541.

It is an arithmetic number, because the mean of its divisors is an integer number (11920258).

Almost surely, 2^1513855980 is an apocalyptic number.

1513855980 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 1513855980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3003905016).

1513855980 is an abundant number, since it is smaller than the sum of its proper divisors (4493954052).

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

1513855980 is a wasteful number, since it uses less digits than its factorization.

1513855980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The square root of 1513855980 is about 38908.3021988881. The cubic root of 1513855980 is about 1148.2281422450.

The spelling of 1513855980 in words is "one billion, five hundred thirteen million, eight hundred fifty-five thousand, nine hundred eighty".