72134158 has 8 divisors (see below), whose sum is σ = 108237528. Its totient is φ = 36054984.

The previous prime is 72134149. The next prime is 72134173. The reversal of 72134158 is 85143127.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7285 + ... + 14047.

It is an arithmetic number, because the mean of its divisors is an integer number (13529691).

Almost surely, 2^72134158 is an apocalyptic number.

72134158 is a deficient number, since it is larger than the sum of its proper divisors (36103370).

72134158 is a wasteful number, since it uses less digits than its factorization.

72134158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098.

The product of its digits is 6720, while the sum is 31.

The square root of 72134158 is about 8493.1830311138. The cubic root of 72134158 is about 416.2749930735.

The spelling of 72134158 in words is "seventy-two million, one hundred thirty-four thousand, one hundred fifty-eight".