136012831 has 2 divisors, whose sum is σ = 136012832. Its totient is φ = 136012830.

The previous prime is 136012763. The next prime is 136012843. The reversal of 136012831 is 138210631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136012831 is a prime.

It is a super-2 number, since 2×136012831² = 36998980393269122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136012796 and 136012805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136012861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68006415 + 68006416.

It is an arithmetic number, because the mean of its divisors is an integer number (68006416).

Almost surely, 2^136012831 is an apocalyptic number.

136012831 is a deficient number, since it is larger than the sum of its proper divisors (1).

136012831 is an equidigital number, since it uses as much as digits as its factorization.

136012831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 136012831 is about 11662.4539013022. The cubic root of 136012831 is about 514.2724902280.

The spelling of 136012831 in words is "one hundred thirty-six million, twelve thousand, eight hundred thirty-one".