20183057 has 2 divisors, whose sum is σ = 20183058. Its totient is φ = 20183056.

The previous prime is 20183047. The next prime is 20183123. The reversal of 20183057 is 75038102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 7623121 = 3544^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 20183057 - 2⁶ = 20182993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20183047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10091528 + 10091529.

It is an arithmetic number, because the mean of its divisors is an integer number (10091529).

Almost surely, 2^20183057 is an apocalyptic number.

It is an amenable number.

20183057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20183057 is an equidigital number, since it uses as much as digits as its factorization.

20183057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 20183057 is about 4492.5557314295. Note that the first 3 decimals coincide. The cubic root of 20183057 is about 272.2674030120.

The spelling of 20183057 in words is "twenty million, one hundred eighty-three thousand, fifty-seven".