200155117 has 2 divisors, whose sum is σ = 200155118. Its totient is φ = 200155116.

The previous prime is 200155103. The next prime is 200155121. The reversal of 200155117 is 711551002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146264836 + 53890281 = 12094^2 + 7341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200155117 is a prime.

It is a super-2 number, since 2×200155117² = 80124141722567378, which contains 22 as substring.

It is a Chen prime.

It is equal to p_11087131 and since 200155117 and 11087131 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200155217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100077558 + 100077559.

It is an arithmetic number, because the mean of its divisors is an integer number (100077559).

Almost surely, 2^200155117 is an apocalyptic number.

It is an amenable number.

200155117 is a deficient number, since it is larger than the sum of its proper divisors (1).

200155117 is an equidigital number, since it uses as much as digits as its factorization.

200155117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 200155117 is about 14147.6187749034. The cubic root of 200155117 is about 584.9546968594.

The spelling of 200155117 in words is "two hundred million, one hundred fifty-five thousand, one hundred seventeen".