129710406 has 16 divisors (see below), whose sum is σ = 296481024. Its totient is φ = 37060104.

The previous prime is 129710393. The next prime is 129710407. The reversal of 129710406 is 604017921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129710407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544130 + ... + 1544213.

It is an arithmetic number, because the mean of its divisors is an integer number (18530064).

Almost surely, 2^129710406 is an apocalyptic number.

129710406 is an abundant number, since it is smaller than the sum of its proper divisors (166770618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129710406 is a wasteful number, since it uses less digits than its factorization.

129710406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088355.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 129710406 is about 11389.0476335820. The cubic root of 129710406 is about 506.2032621385.

The spelling of 129710406 in words is "one hundred twenty-nine million, seven hundred ten thousand, four hundred six".