72167115 has 32 divisors (see below), whose sum is σ = 119218176. Its totient is φ = 37255680.

The previous prime is 72167099. The next prime is 72167119. The reversal of 72167115 is 51176127.

It is not a de Polignac number, because 72167115 - 2⁴ = 72167099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72167119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81475 + ... + 82355.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^72167115 is an apocalyptic number.

72167115 is a deficient number, since it is larger than the sum of its proper divisors (47051061).

72167115 is a wasteful number, since it uses less digits than its factorization.

72167115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

The product of its digits is 2940, while the sum is 30.

The square root of 72167115 is about 8495.1230126467. The cubic root of 72167115 is about 416.3383799926.

The spelling of 72167115 in words is "seventy-two million, one hundred sixty-seven thousand, one hundred fifteen".