75136145 has 24 divisors (see below), whose sum is σ = 105169344. Its totient is φ = 50469408.

The previous prime is 75136133. The next prime is 75136151. The reversal of 75136145 is 54163157.

It is not a de Polignac number, because 75136145 - 2²⁰ = 74087569 is a prime.

It is a super-2 number, since 2×75136145² = 11290880570922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419666 + ... + 419844.

It is an arithmetic number, because the mean of its divisors is an integer number (4382056).

Almost surely, 2^75136145 is an apocalyptic number.

It is an amenable number.

75136145 is a deficient number, since it is larger than the sum of its proper divisors (30033199).

75136145 is an equidigital number, since it uses as much as digits as its factorization.

75136145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 258 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 75136145 is about 8668.1108091671. The cubic root of 75136145 is about 421.9713542695.

The spelling of 75136145 in words is "seventy-five million, one hundred thirty-six thousand, one hundred forty-five".