72231095 has 4 divisors (see below), whose sum is σ = 86677320. Its totient is φ = 57784872.

The previous prime is 72231041. The next prime is 72231097. The reversal of 72231095 is 59013227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72231095 - 2⁸ = 72230839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72231097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7223105 + ... + 7223114.

It is an arithmetic number, because the mean of its divisors is an integer number (21669330).

Almost surely, 2^72231095 is an apocalyptic number.

72231095 is a deficient number, since it is larger than the sum of its proper divisors (14446225).

72231095 is a wasteful number, since it uses less digits than its factorization.

72231095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14446224.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 72231095 is about 8498.8878684214. The cubic root of 72231095 is about 416.4613790512.

The spelling of 72231095 in words is "seventy-two million, two hundred thirty-one thousand, ninety-five".