75459138 has 8 divisors (see below), whose sum is σ = 150918288. Its totient is φ = 25153044.

The previous prime is 75459133. The next prime is 75459173. The reversal of 75459138 is 83195457.

It is a sphenic number, since it is the product of 3 distinct primes.

75459138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 75459138.

It is not an unprimeable number, because it can be changed into a prime (75459133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6288256 + ... + 6288267.

It is an arithmetic number, because the mean of its divisors is an integer number (18864786).

Almost surely, 2^75459138 is an apocalyptic number.

75459138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75459138 is a wasteful number, since it uses less digits than its factorization.

75459138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576528.

The product of its digits is 151200, while the sum is 42.

The square root of 75459138 is about 8686.7219363808. The cubic root of 75459138 is about 422.5751425002.

The spelling of 75459138 in words is "seventy-five million, four hundred fifty-nine thousand, one hundred thirty-eight".