136291653 has 18 divisors (see below), whose sum is σ = 204436934. Its totient is φ = 90856728.

The previous prime is 136291651. The next prime is 136291691. The reversal of 136291653 is 356192631.

136291653 is a `hidden beast` number, since 13 + 629 + 16 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 134165889 + 2125764 = 11583^2 + 1458^2 .

It is not a de Polignac number, because 136291653 - 2¹ = 136291651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136291651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3826 + ... + 16947.

Almost surely, 2^136291653 is an apocalyptic number.

It is an amenable number.

136291653 is a deficient number, since it is larger than the sum of its proper divisors (68145281).

136291653 is an frugal number, since it uses more digits than its factorization.

136291653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20797 (or 20776 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 136291653 is about 11674.4016120742. The cubic root of 136291653 is about 514.6236644828.

The spelling of 136291653 in words is "one hundred thirty-six million, two hundred ninety-one thousand, six hundred fifty-three".