129970007 has 4 divisors (see below), whose sum is σ = 130171536. Its totient is φ = 129768480.

The previous prime is 129969943. The next prime is 129970019. The reversal of 129970007 is 700079921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700079921 = 107 ⋅6542803.

It is a cyclic number.

It is not a de Polignac number, because 129970007 - 2⁶ = 129969943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129970067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99794 + ... + 101087.

It is an arithmetic number, because the mean of its divisors is an integer number (32542884).

Almost surely, 2^129970007 is an apocalyptic number.

129970007 is a deficient number, since it is larger than the sum of its proper divisors (201529).

129970007 is an equidigital number, since it uses as much as digits as its factorization.

129970007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201528.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 129970007 is about 11400.4388950601. The cubic root of 129970007 is about 506.5407403367.

The spelling of 129970007 in words is "one hundred twenty-nine million, nine hundred seventy thousand, seven".