190256137 has 2 divisors, whose sum is σ = 190256138. Its totient is φ = 190256136.

The previous prime is 190256093. The next prime is 190256149. The reversal of 190256137 is 731652091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144504441 + 45751696 = 12021^2 + 6764^2 .

It is a cyclic number.

It is not a de Polignac number, because 190256137 - 2²³ = 181867529 is a prime.

It is not a weakly prime, because it can be changed into another prime (190256237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95128068 + 95128069.

It is an arithmetic number, because the mean of its divisors is an integer number (95128069).

Almost surely, 2^190256137 is an apocalyptic number.

It is an amenable number.

190256137 is a deficient number, since it is larger than the sum of its proper divisors (1).

190256137 is an equidigital number, since it uses as much as digits as its factorization.

190256137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 190256137 is about 13793.3366884159. The cubic root of 190256137 is about 575.1479261500.

The spelling of 190256137 in words is "one hundred ninety million, two hundred fifty-six thousand, one hundred thirty-seven".