136816479 has 32 divisors (see below), whose sum is σ = 209744640. Its totient is φ = 88092576.

The previous prime is 136816451. The next prime is 136816481. The reversal of 136816479 is 974618631.

It is a happy number.

It is not a de Polignac number, because 136816479 - 2⁸ = 136816223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136816579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95164 + ... + 96590.

It is an arithmetic number, because the mean of its divisors is an integer number (6554520).

Almost surely, 2^136816479 is an apocalyptic number.

136816479 is a deficient number, since it is larger than the sum of its proper divisors (72928161).

136816479 is a wasteful number, since it uses less digits than its factorization.

136816479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1550 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 136816479 is about 11696.8576549431. The cubic root of 136816479 is about 515.2833819154.

The spelling of 136816479 in words is "one hundred thirty-six million, eight hundred sixteen thousand, four hundred seventy-nine".