136505633 has 16 divisors (see below), whose sum is σ = 157731840. Its totient is φ = 116830800.

The previous prime is 136505623. The next prime is 136505651. The reversal of 136505633 is 336505631.

It is a cyclic number.

It is not a de Polignac number, because 136505633 - 2¹² = 136501537 is a prime.

It is a Duffinian number.

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 136505633.

It is not an unprimeable number, because it can be changed into a prime (136505623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32948 + ... + 36858.

It is an arithmetic number, because the mean of its divisors is an integer number (9858240).

Almost surely, 2^136505633 is an apocalyptic number.

It is an amenable number.

136505633 is a deficient number, since it is larger than the sum of its proper divisors (21226207).

136505633 is a wasteful number, since it uses less digits than its factorization.

136505633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 136505633 is about 11683.5625132063. The cubic root of 136505633 is about 514.8928460258.

The spelling of 136505633 in words is "one hundred thirty-six million, five hundred five thousand, six hundred thirty-three".