75945231 has 6 divisors (see below), whose sum is σ = 109698680. Its totient is φ = 50630148.

The previous prime is 75945227. The next prime is 75945251. The reversal of 75945231 is 13254957.

It is not a de Polignac number, because 75945231 - 2² = 75945227 is a prime.

It is a super-2 number, since 2×75945231² = 11535356223286722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75945251) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4219171 + ... + 4219188.

Almost surely, 2^75945231 is an apocalyptic number.

75945231 is a deficient number, since it is larger than the sum of its proper divisors (33753449).

75945231 is a wasteful number, since it uses less digits than its factorization.

75945231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8438365 (or 8438362 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 75945231 is about 8714.6561033698. The cubic root of 75945231 is about 423.4805831746.

It can be divided in two parts, 75945 and 231, that added together give a square (76176 = 276²).

The spelling of 75945231 in words is "seventy-five million, nine hundred forty-five thousand, two hundred thirty-one".