136944129 has 32 divisors (see below), whose sum is σ = 222289920. Its totient is φ = 73204992.

The previous prime is 136944127. The next prime is 136944149. The reversal of 136944129 is 921449631.

It is not a de Polignac number, because 136944129 - 2¹ = 136944127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136944127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62832 + ... + 64974.

It is an arithmetic number, because the mean of its divisors is an integer number (6946560).

Almost surely, 2^136944129 is an apocalyptic number.

It is an amenable number.

136944129 is a deficient number, since it is larger than the sum of its proper divisors (85345791).

136944129 is a wasteful number, since it uses less digits than its factorization.

136944129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349.

The product of its digits is 46656, while the sum is 39.

The square root of 136944129 is about 11702.3129765017. The cubic root of 136944129 is about 515.4435855167.

The spelling of 136944129 in words is "one hundred thirty-six million, nine hundred forty-four thousand, one hundred twenty-nine".