136458479 has 16 divisors (see below), whose sum is σ = 144460800. Its totient is φ = 128731680.

The previous prime is 136458457. The next prime is 136458481. The reversal of 136458479 is 974854631.

It is a de Polignac number, because none of the positive numbers 2^k-136458479 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 (136452479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316394 + ... + 316824.

It is an arithmetic number, because the mean of its divisors is an integer number (9028800).

Almost surely, 2^136458479 is an apocalyptic number.

136458479 is a deficient number, since it is larger than the sum of its proper divisors (8002321).

136458479 is a wasteful number, since it uses less digits than its factorization.

136458479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710.

The product of its digits is 725760, while the sum is 47.

The square root of 136458479 is about 11681.5443756380. The cubic root of 136458479 is about 514.8335516389.

The spelling of 136458479 in words is "one hundred thirty-six million, four hundred fifty-eight thousand, four hundred seventy-nine".