156332540 has 96 divisors (see below), whose sum is σ = 412540800. Its totient is φ = 49448448.

The previous prime is 156332521. The next prime is 156332567. The reversal of 156332540 is 45233651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88304 + ... + 90056.

It is an arithmetic number, because the mean of its divisors is an integer number (4297300).

Almost surely, 2^156332540 is an apocalyptic number.

156332540 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 156332540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206270400).

156332540 is an abundant number, since it is smaller than the sum of its proper divisors (256208260).

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

156332540 is a wasteful number, since it uses less digits than its factorization.

156332540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 156332540 is about 12503.3011640926. The cubic root of 156332540 is about 538.7034969004.

The spelling of 156332540 in words is "one hundred fifty-six million, three hundred thirty-two thousand, five hundred forty".