136632645 has 12 divisors (see below), whose sum is σ = 236829996. Its totient is φ = 72870720.

The previous prime is 136632641. The next prime is 136632647. The reversal of 136632645 is 546236631.

136632645 is a `hidden beast` number, since 1 + 3 + 6 + 6 + 3 + 2 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85266756 + 51365889 = 9234^2 + 7167^2 .

It is not a de Polignac number, because 136632645 - 2² = 136632641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136632641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1518096 + ... + 1518185.

It is an arithmetic number, because the mean of its divisors is an integer number (19735833).

Almost surely, 2^136632645 is an apocalyptic number.

136632645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136632645 is a deficient number, since it is larger than the sum of its proper divisors (100197351).

136632645 is a wasteful number, since it uses less digits than its factorization.

136632645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036292 (or 3036289 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 136632645 is about 11688.9967490799. The cubic root of 136632645 is about 515.0524909579.

The spelling of 136632645 in words is "one hundred thirty-six million, six hundred thirty-two thousand, six hundred forty-five".