136387369 has 2 divisors, whose sum is σ = 136387370. Its totient is φ = 136387368.

The previous prime is 136387337. The next prime is 136387387. The reversal of 136387369 is 963783631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132526144 + 3861225 = 11512^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 136387369 - 2⁵ = 136387337 is a prime.

It is a super-2 number, since 2×136387369² = 37203028845484322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136387169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68193684 + 68193685.

It is an arithmetic number, because the mean of its divisors is an integer number (68193685).

Almost surely, 2^136387369 is an apocalyptic number.

It is an amenable number.

136387369 is a deficient number, since it is larger than the sum of its proper divisors (1).

136387369 is an equidigital number, since it uses as much as digits as its factorization.

136387369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 136387369 is about 11678.5002889926. The cubic root of 136387369 is about 514.7441076429.

The spelling of 136387369 in words is "one hundred thirty-six million, three hundred eighty-seven thousand, three hundred sixty-nine".