185055131 has 2 divisors, whose sum is σ = 185055132. Its totient is φ = 185055130.

The previous prime is 185055103. The next prime is 185055133. The reversal of 185055131 is 131550581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 185055131 - 2⁶ = 185055067 is a prime.

It is a super-2 number, since 2×185055131² = 68490803018854322, which contains 22 as substring.

Together with 185055133, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_10295840 and since 185055131 and 10295840 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 185055094 and 185055103.

It is not a weakly prime, because it can be changed into another prime (185055133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92527565 + 92527566.

It is an arithmetic number, because the mean of its divisors is an integer number (92527566).

Almost surely, 2^185055131 is an apocalyptic number.

185055131 is a deficient number, since it is larger than the sum of its proper divisors (1).

185055131 is an equidigital number, since it uses as much as digits as its factorization.

185055131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 29.

The square root of 185055131 is about 13603.4970136359. The cubic root of 185055131 is about 569.8585172598.

The spelling of 185055131 in words is "one hundred eighty-five million, fifty-five thousand, one hundred thirty-one".