76133881 has 4 divisors (see below), whose sum is σ = 76326052. Its totient is φ = 75941712.

The previous prime is 76133867. The next prime is 76133929. The reversal of 76133881 is 18833167.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53523856 + 22610025 = 7316^2 + 4755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76133881 is a prime.

It is a super-2 number, since 2×76133881² = 11592735672244322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76133881.

It is not an unprimeable number, because it can be changed into a prime (76133821) 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, 95490 + ... + 96283.

It is an arithmetic number, because the mean of its divisors is an integer number (19081513).

Almost surely, 2^76133881 is an apocalyptic number.

It is an amenable number.

76133881 is a deficient number, since it is larger than the sum of its proper divisors (192171).

76133881 is a wasteful number, since it uses less digits than its factorization.

76133881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192170.

The product of its digits is 24192, while the sum is 37.

The square root of 76133881 is about 8725.4731103820. The cubic root of 76133881 is about 423.8309389629.

The spelling of 76133881 in words is "seventy-six million, one hundred thirty-three thousand, eight hundred eighty-one".