1520156460 has 48 divisors (see below), whose sum is σ = 4258146816. Its totient is φ = 405212352.

The previous prime is 1520156447. The next prime is 1520156461. The reversal of 1520156460 is 646510251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1520156461) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 258877 + ... + 264683.

It is an arithmetic number, because the mean of its divisors is an integer number (88711392).

Almost surely, 2^1520156460 is an apocalyptic number.

1520156460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520156460 is an abundant number, since it is smaller than the sum of its proper divisors (2737990356).

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

1520156460 is a wasteful number, since it uses less digits than its factorization.

1520156460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182 (or 10180 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1520156460 is about 38989.1838847648. The cubic root of 1520156460 is about 1149.8188649809.

The spelling of 1520156460 in words is "one billion, five hundred twenty million, one hundred fifty-six thousand, four hundred sixty".