156122540 has 48 divisors (see below), whose sum is σ = 375477312. Its totient is φ = 53415936.

The previous prime is 156122513. The next prime is 156122557. The reversal of 156122540 is 45221651.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93392 + ... + 95048.

It is an arithmetic number, because the mean of its divisors is an integer number (7822444).

Almost surely, 2^156122540 is an apocalyptic number.

156122540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156122540 is an abundant number, since it is smaller than the sum of its proper divisors (219354772).

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

156122540 is a wasteful number, since it uses less digits than its factorization.

156122540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 156122540 is about 12494.9005598284. The cubic root of 156122540 is about 538.4621770688.

The spelling of 156122540 in words is "one hundred fifty-six million, one hundred twenty-two thousand, five hundred forty".