72136194 has 32 divisors (see below), whose sum is σ = 160387584. Its totient is φ = 21479040.

The previous prime is 72136189. The next prime is 72136201. The reversal of 72136194 is 49163127.

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, 12499 + ... + 17334.

It is an arithmetic number, because the mean of its divisors is an integer number (5012112).

Almost surely, 2^72136194 is an apocalyptic number.

72136194 is an abundant number, since it is smaller than the sum of its proper divisors (88251390).

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

72136194 is a wasteful number, since it uses less digits than its factorization.

72136194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29882.

The product of its digits is 9072, while the sum is 33.

The square root of 72136194 is about 8493.3028911019. The cubic root of 72136194 is about 416.2789095163.

The spelling of 72136194 in words is "seventy-two million, one hundred thirty-six thousand, one hundred ninety-four".