18137051 has 2 divisors, whose sum is σ = 18137052. Its totient is φ = 18137050.

The previous prime is 18137033. The next prime is 18137083. The reversal of 18137051 is 15073181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18137051 - 2¹⁸ = 17874907 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18137051.

It is not a weakly prime, because it can be changed into another prime (18137851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9068525 + 9068526.

It is an arithmetic number, because the mean of its divisors is an integer number (9068526).

Almost surely, 2^18137051 is an apocalyptic number.

18137051 is a deficient number, since it is larger than the sum of its proper divisors (1).

18137051 is an equidigital number, since it uses as much as digits as its factorization.

18137051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 18137051 is about 4258.7616744777. The cubic root of 18137051 is about 262.7375977269.

The spelling of 18137051 in words is "eighteen million, one hundred thirty-seven thousand, fifty-one".