18873053 has 2 divisors, whose sum is σ = 18873054. Its totient is φ = 18873052.

The previous prime is 18872993. The next prime is 18873083. The reversal of 18873053 is 35037881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10004569 + 8868484 = 3163^2 + 2978^2 .

It is a cyclic number.

It is not a de Polignac number, because 18873053 - 2¹⁸ = 18610909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18873083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9436526 + 9436527.

It is an arithmetic number, because the mean of its divisors is an integer number (9436527).

Almost surely, 2^18873053 is an apocalyptic number.

It is an amenable number.

18873053 is a deficient number, since it is larger than the sum of its proper divisors (1).

18873053 is an equidigital number, since it uses as much as digits as its factorization.

18873053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 18873053 is about 4344.3127189465. The cubic root of 18873053 is about 266.2445458705.

The spelling of 18873053 in words is "eighteen million, eight hundred seventy-three thousand, fifty-three".