136391346 has 48 divisors (see below), whose sum is σ = 363714624. Its totient is φ = 35970912.

The previous prime is 136391341. The next prime is 136391347. The reversal of 136391346 is 643193631.

136391346 is a `hidden beast` number, since 1 + 3 + 639 + 13 + 4 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136391346.

It is not an unprimeable number, because it can be changed into a prime (136391341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39996 + ... + 43271.

It is an arithmetic number, because the mean of its divisors is an integer number (7577388).

Almost surely, 2^136391346 is an apocalyptic number.

136391346 is an abundant number, since it is smaller than the sum of its proper divisors (227323278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136391346 is a wasteful number, since it uses less digits than its factorization.

136391346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83295 (or 83292 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 136391346 is about 11678.6705579017. The cubic root of 136391346 is about 514.7491108370.

The spelling of 136391346 in words is "one hundred thirty-six million, three hundred ninety-one thousand, three hundred forty-six".