183381131 has 4 divisors (see below), whose sum is σ = 183432264. Its totient is φ = 183330000.

The previous prime is 183381127. The next prime is 183381137. The reversal of 183381131 is 131183381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131183381 = 7 ⋅18740483.

It is a cyclic number.

It is not a de Polignac number, because 183381131 - 2² = 183381127 is a prime.

It is a super-2 number, since 2×183381131² = 67257278413678322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 183381094 and 183381103.

It is not an unprimeable number, because it can be changed into a prime (183381137) 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, 19745 + ... + 27506.

It is an arithmetic number, because the mean of its divisors is an integer number (45858066).

Almost surely, 2^183381131 is an apocalyptic number.

183381131 is a deficient number, since it is larger than the sum of its proper divisors (51133).

183381131 is an equidigital number, since it uses as much as digits as its factorization.

183381131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51132.

The product of its digits is 1728, while the sum is 29.

The square root of 183381131 is about 13541.8289385149. The cubic root of 183381131 is about 568.1350053929.

The spelling of 183381131 in words is "one hundred eighty-three million, three hundred eighty-one thousand, one hundred thirty-one".