136813679 has 8 divisors (see below), whose sum is σ = 143940048. Its totient is φ = 129867840.

The previous prime is 136813657. The next prime is 136813681. The reversal of 136813679 is 976318631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136813679 - 2¹² = 136809583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136813279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43577 + ... + 46610.

It is an arithmetic number, because the mean of its divisors is an integer number (17992506).

Almost surely, 2^136813679 is an apocalyptic number.

136813679 is a deficient number, since it is larger than the sum of its proper divisors (7126369).

136813679 is an equidigital number, since it uses as much as digits as its factorization.

136813679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90265.

The product of its digits is 163296, while the sum is 44.

The square root of 136813679 is about 11696.7379640650. The cubic root of 136813679 is about 515.2798667362.

The spelling of 136813679 in words is "one hundred thirty-six million, eight hundred thirteen thousand, six hundred seventy-nine".