129970197 has 48 divisors (see below), whose sum is σ = 231283200. Its totient is φ = 71850240.

The previous prime is 129970177. The next prime is 129970249. The reversal of 129970197 is 791079921.

It is not a de Polignac number, because 129970197 - 2⁷ = 129970069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129970157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39429 + ... + 42597.

It is an arithmetic number, because the mean of its divisors is an integer number (4818400).

Almost surely, 2^129970197 is an apocalyptic number.

It is an amenable number.

129970197 is a deficient number, since it is larger than the sum of its proper divisors (101313003).

129970197 is a wasteful number, since it uses less digits than its factorization.

129970197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 45.

The square root of 129970197 is about 11400.4472280696. The cubic root of 129970197 is about 506.5409871698.

The spelling of 129970197 in words is "one hundred twenty-nine million, nine hundred seventy thousand, one hundred ninety-seven".