156315540 has 24 divisors (see below), whose sum is σ = 437683680. Its totient is φ = 41684128.

The previous prime is 156315529. The next prime is 156315569. The reversal of 156315540 is 45513651.

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

It is a junction number, because it is equal to n+sod(n) for n = 156315498 and 156315507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302570 + ... + 1302689.

It is an arithmetic number, because the mean of its divisors is an integer number (18236820).

Almost surely, 2^156315540 is an apocalyptic number.

156315540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156315540 is an abundant number, since it is smaller than the sum of its proper divisors (281368140).

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

156315540 is a wasteful number, since it uses less digits than its factorization.

156315540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605271 (or 2605269 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 156315540 is about 12502.6213251462. The cubic root of 156315540 is about 538.6839695275.

The spelling of 156315540 in words is "one hundred fifty-six million, three hundred fifteen thousand, five hundred forty".