18293057 has 2 divisors, whose sum is σ = 18293058. Its totient is φ = 18293056.

The previous prime is 18293021. The next prime is 18293083. The reversal of 18293057 is 75039281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12609601 + 5683456 = 3551^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 18293057 - 2⁶ = 18292993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18293087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9146528 + 9146529.

It is an arithmetic number, because the mean of its divisors is an integer number (9146529).

Almost surely, 2^18293057 is an apocalyptic number.

It is an amenable number.

18293057 is a deficient number, since it is larger than the sum of its proper divisors (1).

18293057 is an equidigital number, since it uses as much as digits as its factorization.

18293057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 18293057 is about 4277.0383444622. The cubic root of 18293057 is about 263.4887613472.

It can be divided in two parts, 182 and 93057, that added together give a palindrome (93239).

The spelling of 18293057 in words is "eighteen million, two hundred ninety-three thousand, fifty-seven".