136791253 has 2 divisors, whose sum is σ = 136791254. Its totient is φ = 136791252.

The previous prime is 136791233. The next prime is 136791283. The reversal of 136791253 is 352197631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93257649 + 43533604 = 9657^2 + 6598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136791253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136791233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68395626 + 68395627.

It is an arithmetic number, because the mean of its divisors is an integer number (68395627).

Almost surely, 2^136791253 is an apocalyptic number.

It is an amenable number.

136791253 is a deficient number, since it is larger than the sum of its proper divisors (1).

136791253 is an equidigital number, since it uses as much as digits as its factorization.

136791253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 37.

The square root of 136791253 is about 11695.7792814331. The cubic root of 136791253 is about 515.2517109314.

The spelling of 136791253 in words is "one hundred thirty-six million, seven hundred ninety-one thousand, two hundred fifty-three".