72158941 has 8 divisors (see below), whose sum is σ = 76137120. Its totient is φ = 68198832.

The previous prime is 72158921. The next prime is 72158951. The reversal of 72158941 is 14985127.

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

It is a cyclic number.

It is not a de Polignac number, because 72158941 - 2¹¹ = 72156893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72158941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72158921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4131 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (9517140).

Almost surely, 2^72158941 is an apocalyptic number.

It is an amenable number.

72158941 is a deficient number, since it is larger than the sum of its proper divisors (3978179).

72158941 is a wasteful number, since it uses less digits than its factorization.

72158941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035.

The product of its digits is 20160, while the sum is 37.

The square root of 72158941 is about 8494.6418994564. The cubic root of 72158941 is about 416.3226605595.

The spelling of 72158941 in words is "seventy-two million, one hundred fifty-eight thousand, nine hundred forty-one".