136624229 has 4 divisors (see below), whose sum is σ = 156141984. Its totient is φ = 117106476.

The previous prime is 136624219. The next prime is 136624237. The reversal of 136624229 is 922426631.

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 136624229 - 2⁸ = 136623973 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 (136624219) 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 3 ways as a sum of consecutive naturals, for example, 9758867 + ... + 9758880.

It is an arithmetic number, because the mean of its divisors is an integer number (39035496).

Almost surely, 2^136624229 is an apocalyptic number.

It is an amenable number.

136624229 is a deficient number, since it is larger than the sum of its proper divisors (19517755).

136624229 is an equidigital number, since it uses as much as digits as its factorization.

136624229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19517754.

The product of its digits is 31104, while the sum is 35.

The square root of 136624229 is about 11688.6367468580. The cubic root of 136624229 is about 515.0419157137.

The spelling of 136624229 in words is "one hundred thirty-six million, six hundred twenty-four thousand, two hundred twenty-nine".