129370634 has 16 divisors (see below), whose sum is σ = 195666408. Its totient is φ = 64151232.

The previous prime is 129370627. The next prime is 129370643. The reversal of 129370634 is 436073921.

It can be written as a sum of positive squares in 4 ways, for example, as 117831025 + 11539609 = 10855^2 + 3397^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129370594 and 129370603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161924 + ... + 162720.

Almost surely, 2^129370634 is an apocalyptic number.

129370634 is a deficient number, since it is larger than the sum of its proper divisors (66295774).

129370634 is a wasteful number, since it uses less digits than its factorization.

129370634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 129370634 is about 11374.1212407816. The cubic root of 129370634 is about 505.7608815662.

The spelling of 129370634 in words is "one hundred twenty-nine million, three hundred seventy thousand, six hundred thirty-four".