136081679 has 2 divisors, whose sum is σ = 136081680. Its totient is φ = 136081678.

The previous prime is 136081663. The next prime is 136081681. The reversal of 136081679 is 976180631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136081679 - 2⁴ = 136081663 is a prime.

Together with 136081681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136081609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68040839 + 68040840.

It is an arithmetic number, because the mean of its divisors is an integer number (68040840).

Almost surely, 2^136081679 is an apocalyptic number.

136081679 is a deficient number, since it is larger than the sum of its proper divisors (1).

136081679 is an equidigital number, since it uses as much as digits as its factorization.

136081679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 136081679 is about 11665.4052222801. The cubic root of 136081679 is about 514.3592483662.

The spelling of 136081679 in words is "one hundred thirty-six million, eighty-one thousand, six hundred seventy-nine".