72475135 has 4 divisors (see below), whose sum is σ = 86970168. Its totient is φ = 57980104.

The previous prime is 72475133. The next prime is 72475157. The reversal of 72475135 is 53157427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72475135 - 2¹ = 72475133 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 72475135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72475133) 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, 7247509 + ... + 7247518.

It is an arithmetic number, because the mean of its divisors is an integer number (21742542).

Almost surely, 2^72475135 is an apocalyptic number.

72475135 is a deficient number, since it is larger than the sum of its proper divisors (14495033).

72475135 is a wasteful number, since it uses less digits than its factorization.

72475135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14495032.

The product of its digits is 29400, while the sum is 34.

The square root of 72475135 is about 8513.2329346729. The cubic root of 72475135 is about 416.9298706795.

The spelling of 72475135 in words is "seventy-two million, four hundred seventy-five thousand, one hundred thirty-five".