18752131 has 2 divisors, whose sum is σ = 18752132. Its totient is φ = 18752130.

The previous prime is 18752113. The next prime is 18752141. The reversal of 18752131 is 13125781.

Together with previous prime (18752113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18752131 - 2⁵ = 18752099 is a prime.

It is a super-2 number, since 2×18752131² = 703284834082322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18752131.

It is not a weakly prime, because it can be changed into another prime (18752141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9376065 + 9376066.

It is an arithmetic number, because the mean of its divisors is an integer number (9376066).

Almost surely, 2^18752131 is an apocalyptic number.

18752131 is a deficient number, since it is larger than the sum of its proper divisors (1).

18752131 is an equidigital number, since it uses as much as digits as its factorization.

18752131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 28.

The square root of 18752131 is about 4330.3730786157. The cubic root of 18752131 is about 265.6747064718.

The spelling of 18752131 in words is "eighteen million, seven hundred fifty-two thousand, one hundred thirty-one".