136756331 has 2 divisors, whose sum is σ = 136756332. Its totient is φ = 136756330.

The previous prime is 136756309. The next prime is 136756337. The reversal of 136756331 is 133657631.

136756331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136756331 - 2¹⁸ = 136494187 is a prime.

It is a super-2 number, since 2×136756331² = 37404588137163122, 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 = 136756291 and 136756300.

It is not a weakly prime, because it can be changed into another prime (136756337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68378165 + 68378166.

It is an arithmetic number, because the mean of its divisors is an integer number (68378166).

Almost surely, 2^136756331 is an apocalyptic number.

136756331 is a deficient number, since it is larger than the sum of its proper divisors (1).

136756331 is an equidigital number, since it uses as much as digits as its factorization.

136756331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 35.

The square root of 136756331 is about 11694.2862544065. The cubic root of 136756331 is about 515.2078602921.

The spelling of 136756331 in words is "one hundred thirty-six million, seven hundred fifty-six thousand, three hundred thirty-one".