72105356 has 12 divisors (see below), whose sum is σ = 127410192. Its totient is φ = 35702448.

The previous prime is 72105343. The next prime is 72105401. The reversal of 72105356 is 65350127.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87095 + ... + 87918.

It is an arithmetic number, because the mean of its divisors is an integer number (10617516).

Almost surely, 2^72105356 is an apocalyptic number.

It is an amenable number.

72105356 is a deficient number, since it is larger than the sum of its proper divisors (55304836).

72105356 is a wasteful number, since it uses less digits than its factorization.

72105356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175120 (or 175118 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 72105356 is about 8491.4872666689. The cubic root of 72105356 is about 416.2195817455.

The spelling of 72105356 in words is "seventy-two million, one hundred five thousand, three hundred fifty-six".