75138716 has 12 divisors (see below), whose sum is σ = 134551032. Its totient is φ = 36695568.

The previous prime is 75138697. The next prime is 75138731. The reversal of 75138716 is 61783157.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 75138716.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 218255 + ... + 218598.

It is an arithmetic number, because the mean of its divisors is an integer number (11212586).

Almost surely, 2^75138716 is an apocalyptic number.

It is an amenable number.

75138716 is a deficient number, since it is larger than the sum of its proper divisors (59412316).

75138716 is a wasteful number, since it uses less digits than its factorization.

75138716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436900 (or 436898 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 75138716 is about 8668.2591101097. The cubic root of 75138716 is about 421.9761672037.

The spelling of 75138716 in words is "seventy-five million, one hundred thirty-eight thousand, seven hundred sixteen".