75104991 has 12 divisors (see below), whose sum is σ = 116830168. Its totient is φ = 46218384.

The previous prime is 75104941. The next prime is 75105049. The reversal of 75104991 is 19940157.

It is not a de Polignac number, because 75104991 - 2⁶ = 75104927 is a prime.

It is a super-2 number, since 2×75104991² = 11281519346220162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75104941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320845 + ... + 321078.

Almost surely, 2^75104991 is an apocalyptic number.

75104991 is a deficient number, since it is larger than the sum of its proper divisors (41725177).

75104991 is a wasteful number, since it uses less digits than its factorization.

75104991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641942 (or 641939 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 75104991 is about 8666.3135761407. The cubic root of 75104991 is about 421.9130249841.

The spelling of 75104991 in words is "seventy-five million, one hundred four thousand, nine hundred ninety-one".