72137914 has 8 divisors (see below), whose sum is σ = 108361620. Its totient is φ = 36017376.

The previous prime is 72137911. The next prime is 72137921. The reversal of 72137914 is 41973127.

It can be written as a sum of positive squares in 2 ways, for example, as 70274689 + 1863225 = 8383^2 + 1365^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 72137914.

It is not an unprimeable number, because it can be changed into a prime (72137911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24019 + ... + 26854.

Almost surely, 2^72137914 is an apocalyptic number.

72137914 is a deficient number, since it is larger than the sum of its proper divisors (36223706).

72137914 is a wasteful number, since it uses less digits than its factorization.

72137914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51584.

The product of its digits is 10584, while the sum is 34.

The square root of 72137914 is about 8493.4041467482. The cubic root of 72137914 is about 416.2822180451.

The spelling of 72137914 in words is "seventy-two million, one hundred thirty-seven thousand, nine hundred fourteen".