75211172 has 12 divisors (see below), whose sum is σ = 132107136. Its totient is φ = 37466280.

The previous prime is 75211163. The next prime is 75211193. The reversal of 75211172 is 27111257.

It is a super-2 number, since 2×75211172² = 11313440787227168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33608 + ... + 35775.

It is an arithmetic number, because the mean of its divisors is an integer number (11008928).

Almost surely, 2^75211172 is an apocalyptic number.

It is an amenable number.

75211172 is a deficient number, since it is larger than the sum of its proper divisors (56895964).

75211172 is a wasteful number, since it uses less digits than its factorization.

75211172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69658 (or 69656 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 75211172 is about 8672.4374889647. The cubic root of 75211172 is about 422.1117603412. Note that the first 3 decimals are identical.

The spelling of 75211172 in words is "seventy-five million, two hundred eleven thousand, one hundred seventy-two".