72101075 has 12 divisors (see below), whose sum is σ = 90113280. Its totient is φ = 57224160.

The previous prime is 72101069. The next prime is 72101087. The reversal of 72101075 is 57010127.

It is a happy number.

It is not a de Polignac number, because 72101075 - 2⁶ = 72101011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72101075.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8180 + ... + 14529.

It is an arithmetic number, because the mean of its divisors is an integer number (7509440).

Almost surely, 2^72101075 is an apocalyptic number.

72101075 is a deficient number, since it is larger than the sum of its proper divisors (18012205).

72101075 is a wasteful number, since it uses less digits than its factorization.

72101075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22846 (or 22841 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 72101075 is about 8491.2351869442. The cubic root of 72101075 is about 416.2113443949.

The spelling of 72101075 in words is "seventy-two million, one hundred one thousand, seventy-five".