75074144 has 24 divisors (see below), whose sum is σ = 148250088. Its totient is φ = 37423360.

The previous prime is 75074117. The next prime is 75074161. The reversal of 75074144 is 44147057.

It is a super-2 number, since 2×75074144² = 11272254194665472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 75074144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7724 + ... + 14484.

It is an arithmetic number, because the mean of its divisors is an integer number (6177087).

Almost surely, 2^75074144 is an apocalyptic number.

It is an amenable number.

75074144 is a deficient number, since it is larger than the sum of its proper divisors (73175944).

75074144 is a wasteful number, since it uses less digits than its factorization.

75074144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7110 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 75074144 is about 8664.5336862407. The cubic root of 75074144 is about 421.8552545967.

The spelling of 75074144 in words is "seventy-five million, seventy-four thousand, one hundred forty-four".