72156034 has 16 divisors (see below), whose sum is σ = 117607680. Its totient is φ = 33076080.

The previous prime is 72156017. The next prime is 72156059. The reversal of 72156034 is 43065127.

It is a junction number, because it is equal to n+sod(n) for n = 72155993 and 72156011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29449 + ... + 31804.

It is an arithmetic number, because the mean of its divisors is an integer number (7350480).

Almost surely, 2^72156034 is an apocalyptic number.

72156034 is a deficient number, since it is larger than the sum of its proper divisors (45451646).

72156034 is a wasteful number, since it uses less digits than its factorization.

72156034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61305.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 72156034 is about 8494.4707898727. The cubic root of 72156034 is about 416.3170698167.

The spelling of 72156034 in words is "seventy-two million, one hundred fifty-six thousand, thirty-four".