136865479 has 8 divisors (see below), whose sum is σ = 146676960. Its totient is φ = 127375776.

The previous prime is 136865461. The next prime is 136865537. The reversal of 136865479 is 974568631.

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 136865479 - 2⁵ = 136865447 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 (136865459) 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, 79564 + ... + 81265.

It is an arithmetic number, because the mean of its divisors is an integer number (18334620).

Almost surely, 2^136865479 is an apocalyptic number.

136865479 is a deficient number, since it is larger than the sum of its proper divisors (9811481).

136865479 is a wasteful number, since it uses less digits than its factorization.

136865479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160889.

The product of its digits is 1088640, while the sum is 49.

The square root of 136865479 is about 11698.9520470852. The cubic root of 136865479 is about 515.3448897889.

The spelling of 136865479 in words is "one hundred thirty-six million, eight hundred sixty-five thousand, four hundred seventy-nine".