136604229 has 4 divisors (see below), whose sum is σ = 182138976. Its totient is φ = 91069484.

The previous prime is 136604219. The next prime is 136604261. The reversal of 136604229 is 922406631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136604229 - 2⁷ = 136604101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136604229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136604219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22767369 + ... + 22767374.

It is an arithmetic number, because the mean of its divisors is an integer number (45534744).

Almost surely, 2^136604229 is an apocalyptic number.

It is an amenable number.

136604229 is a deficient number, since it is larger than the sum of its proper divisors (45534747).

136604229 is an equidigital number, since it uses as much as digits as its factorization.

136604229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45534746.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 136604229 is about 11687.7811837833. The cubic root of 136604229 is about 515.0167826874.

The spelling of 136604229 in words is "one hundred thirty-six million, six hundred four thousand, two hundred twenty-nine".