18038057 has 2 divisors, whose sum is σ = 18038058. Its totient is φ = 18038056.

The previous prime is 18038051. The next prime is 18038093. The reversal of 18038057 is 75083081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15202201 + 2835856 = 3899^2 + 1684^2 .

It is a cyclic number.

It is not a de Polignac number, because 18038057 - 2²⁰ = 16989481 is a prime.

It is not a weakly prime, because it can be changed into another prime (18038051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9019028 + 9019029.

It is an arithmetic number, because the mean of its divisors is an integer number (9019029).

Almost surely, 2^18038057 is an apocalyptic number.

It is an amenable number.

18038057 is a deficient number, since it is larger than the sum of its proper divisors (1).

18038057 is an equidigital number, since it uses as much as digits as its factorization.

18038057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 18038057 is about 4247.1233794181. The cubic root of 18038057 is about 262.2587085815.

The spelling of 18038057 in words is "eighteen million, thirty-eight thousand, fifty-seven".