75137172 has 48 divisors (see below), whose sum is σ = 201331200. Its totient is φ = 21569760.

The previous prime is 75137171. The next prime is 75137197. The reversal of 75137172 is 27173157.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75137171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12472 + ... + 17487.

It is an arithmetic number, because the mean of its divisors is an integer number (4194400).

Almost surely, 2^75137172 is an apocalyptic number.

It is an amenable number.

75137172 is an abundant number, since it is smaller than the sum of its proper divisors (126194028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75137172 is a wasteful number, since it uses less digits than its factorization.

75137172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29996 (or 29994 counting only the distinct ones).

The product of its digits is 10290, while the sum is 33.

The square root of 75137172 is about 8668.1700490934. The cubic root of 75137172 is about 421.9732768355.

The spelling of 75137172 in words is "seventy-five million, one hundred thirty-seven thousand, one hundred seventy-two".