136826831 has 2 divisors, whose sum is σ = 136826832. Its totient is φ = 136826830.

The previous prime is 136826827. The next prime is 136826887. The reversal of 136826831 is 138628631.

It is a weak prime.

It is an emirp because it is prime and its reverse (138628631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136826831 - 2² = 136826827 is a prime.

It is a super-2 number, since 2×136826831² = 37443163363005122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136826801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68413415 + 68413416.

It is an arithmetic number, because the mean of its divisors is an integer number (68413416).

Almost surely, 2^136826831 is an apocalyptic number.

136826831 is a deficient number, since it is larger than the sum of its proper divisors (1).

136826831 is an equidigital number, since it uses as much as digits as its factorization.

136826831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 136826831 is about 11697.3001585836. The cubic root of 136826831 is about 515.2963776186.

The spelling of 136826831 in words is "one hundred thirty-six million, eight hundred twenty-six thousand, eight hundred thirty-one".