129572207 has 2 divisors, whose sum is σ = 129572208. Its totient is φ = 129572206.

The previous prime is 129572173. The next prime is 129572221. The reversal of 129572207 is 702275921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129572207 - 2⁸ = 129571951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129572237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64786103 + 64786104.

It is an arithmetic number, because the mean of its divisors is an integer number (64786104).

Almost surely, 2^129572207 is an apocalyptic number.

129572207 is a deficient number, since it is larger than the sum of its proper divisors (1).

129572207 is an equidigital number, since it uses as much as digits as its factorization.

129572207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 129572207 is about 11382.9788280573. The cubic root of 129572207 is about 506.0234214033.

The spelling of 129572207 in words is "one hundred twenty-nine million, five hundred seventy-two thousand, two hundred seven".