75691136 has 32 divisors (see below), whose sum is σ = 158732400. Its totient is φ = 35852544.

The previous prime is 75691127. The next prime is 75691139. The reversal of 75691136 is 63119657.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 75691136.

It is not an unprimeable number, because it can be changed into a prime (75691139) 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, 13130 + ... + 17993.

Almost surely, 2^75691136 is an apocalyptic number.

75691136 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

75691136 is an abundant number, since it is smaller than the sum of its proper divisors (83041264).

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

75691136 is a wasteful number, since it uses less digits than its factorization.

75691136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31156 (or 31144 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 75691136 is about 8700.0652871114. The cubic root of 75691136 is about 423.0077664389.

The spelling of 75691136 in words is "seventy-five million, six hundred ninety-one thousand, one hundred thirty-six".