202057117 has 2 divisors, whose sum is σ = 202057118. Its totient is φ = 202057116.

The previous prime is 202057099. The next prime is 202057133. The reversal of 202057117 is 711750202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202037796 + 19321 = 14214^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 202057117 - 2²³ = 193668509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202057091 and 202057100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202057157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101028558 + 101028559.

It is an arithmetic number, because the mean of its divisors is an integer number (101028559).

Almost surely, 2^202057117 is an apocalyptic number.

It is an amenable number.

202057117 is a deficient number, since it is larger than the sum of its proper divisors (1).

202057117 is an equidigital number, since it uses as much as digits as its factorization.

202057117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 202057117 is about 14214.6796305791. The cubic root of 202057117 is about 586.8017279362.

The spelling of 202057117 in words is "two hundred two million, fifty-seven thousand, one hundred seventeen".