199795151 has 2 divisors, whose sum is σ = 199795152. Its totient is φ = 199795150.

The previous prime is 199795133. The next prime is 199795201. The reversal of 199795151 is 151597991.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199795151 is a prime.

It is a super-2 number, since 2×199795151² = 79836204726225602, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 199795096 and 199795105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199725151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99897575 + 99897576.

It is an arithmetic number, because the mean of its divisors is an integer number (99897576).

Almost surely, 2^199795151 is an apocalyptic number.

199795151 is a deficient number, since it is larger than the sum of its proper divisors (1).

199795151 is an equidigital number, since it uses as much as digits as its factorization.

199795151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127575, while the sum is 47.

The square root of 199795151 is about 14134.8912624045. The cubic root of 199795151 is about 584.6038187334.

The spelling of 199795151 in words is "one hundred ninety-nine million, seven hundred ninety-five thousand, one hundred fifty-one".