72914522 has 8 divisors (see below), whose sum is σ = 109555572. Its totient is φ = 36396000.

The previous prime is 72914519. The next prime is 72914537. The reversal of 72914522 is 22541927.

It is a Cunningham number, because it is equal to 8539²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 72914521 + 1 = 8539^2 + 1^2 .

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

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, 29129 + ... + 31532.

Almost surely, 2^72914522 is an apocalyptic number.

72914522 is a deficient number, since it is larger than the sum of its proper divisors (36641050).

72914522 is a wasteful number, since it uses less digits than its factorization.

72914522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61264.

The product of its digits is 10080, while the sum is 32.

The square root of 72914522 is about 8539.0000585549. Note that the first 4 decimals coincide. The cubic root of 72914522 is about 417.7707319296.

It can be divided in two parts, 729 and 14522, that added together give a palindrome (15251).

The spelling of 72914522 in words is "seventy-two million, nine hundred fourteen thousand, five hundred twenty-two".