156451240 has 32 divisors (see below), whose sum is σ = 384017760. Its totient is φ = 56891200.

The previous prime is 156451237. The next prime is 156451241. The reversal of 156451240 is 42154651.

It is a junction number, because it is equal to n+sod(n) for n = 156451199 and 156451208.

It is not an unprimeable number, because it can be changed into a prime (156451241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177346 + ... + 178225.

It is an arithmetic number, because the mean of its divisors is an integer number (12000555).

Almost surely, 2^156451240 is an apocalyptic number.

156451240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156451240 is an abundant number, since it is smaller than the sum of its proper divisors (227566520).

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

156451240 is a wasteful number, since it uses less digits than its factorization.

156451240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355593 (or 355589 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 156451240 is about 12508.0470098253. The cubic root of 156451240 is about 538.8398044750.

The spelling of 156451240 in words is "one hundred fifty-six million, four hundred fifty-one thousand, two hundred forty".