136684845 has 96 divisors (see below), whose sum is σ = 281698560. Its totient is φ = 60549120.

The previous prime is 136684843. The next prime is 136684861. The reversal of 136684845 is 548486631.

It is not a de Polignac number, because 136684845 - 2¹ = 136684843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (552960) is a multiple of the sum of its prime divisors (512).

It is a self number, because there is not a number n which added to its sum of digits gives 136684845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136684843) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311136 + ... + 311574.

It is an arithmetic number, because the mean of its divisors is an integer number (2934360).

Almost surely, 2^136684845 is an apocalyptic number.

136684845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136684845 is an abundant number, since it is smaller than the sum of its proper divisors (145013715).

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

136684845 is a wasteful number, since it uses less digits than its factorization.

136684845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 512 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 136684845 is about 11691.2294049856. The cubic root of 136684845 is about 515.1180739106.

The spelling of 136684845 in words is "one hundred thirty-six million, six hundred eighty-four thousand, eight hundred forty-five".