72534158 has 8 divisors (see below), whose sum is σ = 108954720. Its totient is φ = 36215920.

The previous prime is 72534151. The next prime is 72534167. The reversal of 72534158 is 85143527.

It is a happy number.

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

It is a super-2 number, since 2×72534158² = 10522408153537928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72534151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23783 + ... + 26658.

It is an arithmetic number, because the mean of its divisors is an integer number (13619340).

Almost surely, 2^72534158 is an apocalyptic number.

72534158 is a deficient number, since it is larger than the sum of its proper divisors (36420562).

72534158 is a wasteful number, since it uses less digits than its factorization.

72534158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51162.

The product of its digits is 33600, while the sum is 35.

The square root of 72534158 is about 8516.6987735859. The cubic root of 72534158 is about 417.0430210931.

It can be divided in two parts, 7253 and 4158, that added together give a palindrome (11411).

The spelling of 72534158 in words is "seventy-two million, five hundred thirty-four thousand, one hundred fifty-eight".