72315158 has 8 divisors (see below), whose sum is σ = 108519528. Its totient is φ = 36141984.

The previous prime is 72315143. The next prime is 72315169. The reversal of 72315158 is 85151327.

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

It is a congruent number.

It is an unprimeable number.

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, 716 + ... + 12047.

It is an arithmetic number, because the mean of its divisors is an integer number (13564941).

Almost surely, 2^72315158 is an apocalyptic number.

72315158 is a deficient number, since it is larger than the sum of its proper divisors (36204370).

72315158 is a wasteful number, since it uses less digits than its factorization.

72315158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598.

The product of its digits is 8400, while the sum is 32.

The square root of 72315158 is about 8503.8319597697. The cubic root of 72315158 is about 416.6228765358.

The spelling of 72315158 in words is "seventy-two million, three hundred fifteen thousand, one hundred fifty-eight".