206157053 has 2 divisors, whose sum is σ = 206157054. Its totient is φ = 206157052.

The previous prime is 206157047. The next prime is 206157097. The reversal of 206157053 is 350751602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203975524 + 2181529 = 14282^2 + 1477^2 .

It is a cyclic number.

It is not a de Polignac number, because 206157053 - 2⁶ = 206156989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206157013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103078526 + 103078527.

It is an arithmetic number, because the mean of its divisors is an integer number (103078527).

Almost surely, 2^206157053 is an apocalyptic number.

It is an amenable number.

206157053 is a deficient number, since it is larger than the sum of its proper divisors (1).

206157053 is an equidigital number, since it uses as much as digits as its factorization.

206157053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 206157053 is about 14358.1702525078. The cubic root of 206157053 is about 590.7441085353.

The spelling of 206157053 in words is "two hundred six million, one hundred fifty-seven thousand, fifty-three".