129235130 has 16 divisors (see below), whose sum is σ = 234883584. Its totient is φ = 51191760.

The previous prime is 129235129. The next prime is 129235133. The reversal of 129235130 is 31532921.

It is a super-2 number, since 2×129235130² = 33403437652233800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129235130.

It is not an unprimeable number, because it can be changed into a prime (129235133) 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, 61706 + ... + 63765.

It is an arithmetic number, because the mean of its divisors is an integer number (14680224).

Almost surely, 2^129235130 is an apocalyptic number.

129235130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129235130 is a deficient number, since it is larger than the sum of its proper divisors (105648454).

129235130 is a wasteful number, since it uses less digits than its factorization.

129235130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125581.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 129235130 is about 11368.1630002389. The cubic root of 129235130 is about 505.5842403364.

The spelling of 129235130 in words is "one hundred twenty-nine million, two hundred thirty-five thousand, one hundred thirty".