156261740 has 12 divisors (see below), whose sum is σ = 328149696. Its totient is φ = 62504688.

The previous prime is 156261737. The next prime is 156261761. The reversal of 156261740 is 47162651.

It is a junction number, because it is equal to n+sod(n) for n = 156261697 and 156261706.

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 3 ways as a sum of consecutive naturals, for example, 3906524 + ... + 3906563.

It is an arithmetic number, because the mean of its divisors is an integer number (27345808).

Almost surely, 2^156261740 is an apocalyptic number.

156261740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156261740 is an abundant number, since it is smaller than the sum of its proper divisors (171887956).

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

156261740 is a wasteful number, since it uses less digits than its factorization.

156261740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813096 (or 7813094 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 156261740 is about 12500.4695911794. The cubic root of 156261740 is about 538.6221618039.

The spelling of 156261740 in words is "one hundred fifty-six million, two hundred sixty-one thousand, seven hundred forty".