129167137 has 6 divisors (see below), whose sum is σ = 141977234. Its totient is φ = 117424560.

The previous prime is 129167117. The next prime is 129167167. The reversal of 129167137 is 731761921.

It can be written as a sum of positive squares in only one way, i.e., 115261696 + 13905441 = 10736^2 + 3729^2 .

It is not a de Polignac number, because 129167137 - 2⁷ = 129167009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129167096 and 129167105.

It is not an unprimeable number, because it can be changed into a prime (129167117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 533628 + ... + 533869.

Almost surely, 2^129167137 is an apocalyptic number.

It is an amenable number.

129167137 is a deficient number, since it is larger than the sum of its proper divisors (12810097).

129167137 is a wasteful number, since it uses less digits than its factorization.

129167137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067519 (or 1067508 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 129167137 is about 11365.1721060440. The cubic root of 129167137 is about 505.4955590321.

The spelling of 129167137 in words is "one hundred twenty-nine million, one hundred sixty-seven thousand, one hundred thirty-seven".