18753157 has 2 divisors, whose sum is σ = 18753158. Its totient is φ = 18753156.

The previous prime is 18753127. The next prime is 18753167. The reversal of 18753157 is 75135781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 314721 = 4294^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 18753157 - 2⁷ = 18753029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18753127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9376578 + 9376579.

It is an arithmetic number, because the mean of its divisors is an integer number (9376579).

Almost surely, 2^18753157 is an apocalyptic number.

It is an amenable number.

18753157 is a deficient number, since it is larger than the sum of its proper divisors (1).

18753157 is an equidigital number, since it uses as much as digits as its factorization.

18753157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 37.

The square root of 18753157 is about 4330.4915425388. The cubic root of 18753157 is about 265.6795517394.

The spelling of 18753157 in words is "eighteen million, seven hundred fifty-three thousand, one hundred fifty-seven".