136333831 has 2 divisors, whose sum is σ = 136333832. Its totient is φ = 136333830.

The previous prime is 136333819. The next prime is 136333853. The reversal of 136333831 is 138333631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136333831 is a prime.

It is a super-2 number, since 2×136333831² = 37173826950273122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136333793 and 136333802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136334831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68166915 + 68166916.

It is an arithmetic number, because the mean of its divisors is an integer number (68166916).

Almost surely, 2^136333831 is an apocalyptic number.

136333831 is a deficient number, since it is larger than the sum of its proper divisors (1).

136333831 is an equidigital number, since it uses as much as digits as its factorization.

136333831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 31.

The square root of 136333831 is about 11676.2079032535. The cubic root of 136333831 is about 514.6767456455.

The spelling of 136333831 in words is "one hundred thirty-six million, three hundred thirty-three thousand, eight hundred thirty-one".