137725329 has 12 divisors (see below), whose sum is σ = 213615024. Its totient is φ = 78700104.

The previous prime is 137725297. The next prime is 137725331. The reversal of 137725329 is 923527731.

It is not a de Polignac number, because 137725329 - 2⁵ = 137725297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137725339) 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 11 ways as a sum of consecutive naturals, for example, 468307 + ... + 468600.

It is an arithmetic number, because the mean of its divisors is an integer number (17801252).

Almost surely, 2^137725329 is an apocalyptic number.

It is an amenable number.

137725329 is a deficient number, since it is larger than the sum of its proper divisors (75889695).

137725329 is an equidigital number, since it uses as much as digits as its factorization.

137725329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936924 (or 936917 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The square root of 137725329 is about 11735.6435273060. The cubic root of 137725329 is about 516.4218464579.

The spelling of 137725329 in words is "one hundred thirty-seven million, seven hundred twenty-five thousand, three hundred twenty-nine".