72158 has 8 divisors (see below), whose sum is σ = 109560. Its totient is φ = 35640.

The previous prime is 72139. The next prime is 72161. The reversal of 72158 is 85127.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 72158.

It is an unprimeable number.

72158 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 383.

It is an arithmetic number, because the mean of its divisors is an integer number (13695).

2⁷²¹⁵⁸ is an apocalyptic number.

72158 is a deficient number, since it is larger than the sum of its proper divisors (37402).

72158 is a wasteful number, since it uses less digits than its factorization.

72158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442.

The product of its digits is 560, while the sum is 23.

The square root of 72158 is about 268.6224115743. The cubic root of 72158 is about 41.6320850845.

The spelling of 72158 in words is "seventy-two thousand, one hundred fifty-eight".