136712399 has 2 divisors, whose sum is σ = 136712400. Its totient is φ = 136712398.

The previous prime is 136712393. The next prime is 136712413. The reversal of 136712399 is 993217631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136712399 - 2⁴ = 136712383 is a prime.

It is a Sophie Germain prime.

It is equal to p_7736891 and since 136712399 and 7736891 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 (136712393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68356199 + 68356200.

It is an arithmetic number, because the mean of its divisors is an integer number (68356200).

Almost surely, 2^136712399 is an apocalyptic number.

136712399 is a deficient number, since it is larger than the sum of its proper divisors (1).

136712399 is an equidigital number, since it uses as much as digits as its factorization.

136712399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 136712399 is about 11692.4077503310. The cubic root of 136712399 is about 515.1526854282.

The spelling of 136712399 in words is "one hundred thirty-six million, seven hundred twelve thousand, three hundred ninety-nine".