137679613 has 4 divisors (see below), whose sum is σ = 137711680. Its totient is φ = 137647548.

The previous prime is 137679601. The next prime is 137679673. The reversal of 137679613 is 316976731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137679613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137679613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137679673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8373 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (34427920).

Almost surely, 2^137679613 is an apocalyptic number.

It is an amenable number.

137679613 is a deficient number, since it is larger than the sum of its proper divisors (32067).

137679613 is an equidigital number, since it uses as much as digits as its factorization.

137679613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32066.

The product of its digits is 142884, while the sum is 43.

The square root of 137679613 is about 11733.6956241416. The cubic root of 137679613 is about 516.3647004606.

The spelling of 137679613 in words is "one hundred thirty-seven million, six hundred seventy-nine thousand, six hundred thirteen".