129937201 has 3 divisors (see below), whose sum is σ = 129948601. Its totient is φ = 129925802.

The previous prime is 129937193. The next prime is 129937211. The reversal of 129937201 is 102739921.

It is a happy number.

The square root of 129937201 is 11399.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 129937201 - 2³ = 129937193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129937211) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5700 + ... + 17098.

Almost surely, 2^129937201 is an apocalyptic number.

129937201 is the 11399-th square number.

129937201 is the 5700-th centered octagonal number.

It is an amenable number.

129937201 is a deficient number, since it is larger than the sum of its proper divisors (11400).

129937201 is an frugal number, since it uses more digits than its factorization.

129937201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22798 (or 11399 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The cubic root of 129937201 is about 506.4981177494.

The spelling of 129937201 in words is "one hundred twenty-nine million, nine hundred thirty-seven thousand, two hundred one".