72136895 has 8 divisors (see below), whose sum is σ = 86630256. Its totient is φ = 57665536.

The previous prime is 72136873. The next prime is 72136931. The reversal of 72136895 is 59863127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72136895 - 2¹⁶ = 72071359 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2879 + ... + 12351.

It is an arithmetic number, because the mean of its divisors is an integer number (10828782).

Almost surely, 2^72136895 is an apocalyptic number.

72136895 is a deficient number, since it is larger than the sum of its proper divisors (14493361).

72136895 is a wasteful number, since it uses less digits than its factorization.

72136895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001.

The product of its digits is 90720, while the sum is 41.

The square root of 72136895 is about 8493.3441588105. The cubic root of 72136895 is about 416.2802579405.

The spelling of 72136895 in words is "seventy-two million, one hundred thirty-six thousand, eight hundred ninety-five".