136506645 has 48 divisors (see below), whose sum is σ = 260874432. Its totient is φ = 65479680.

The previous prime is 136506631. The next prime is 136506691. The reversal of 136506645 is 546605631.

136506645 is a `hidden beast` number, since 1 + 3 + 6 + 5 + 0 + 6 + 645 = 666.

It is not a de Polignac number, because 136506645 - 2⁶ = 136506581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46594 + ... + 49436.

It is an arithmetic number, because the mean of its divisors is an integer number (5434884).

Almost surely, 2^136506645 is an apocalyptic number.

136506645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136506645 is a deficient number, since it is larger than the sum of its proper divisors (124367787).

136506645 is a wasteful number, since it uses less digits than its factorization.

136506645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962 (or 2959 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 136506645 is about 11683.6058218343. The cubic root of 136506645 is about 514.8941184282.

The spelling of 136506645 in words is "one hundred thirty-six million, five hundred six thousand, six hundred forty-five".