129433419 has 12 divisors (see below), whose sum is σ = 188811792. Its totient is φ = 85434000.

The previous prime is 129433417. The next prime is 129433457. The reversal of 129433419 is 914334921.

It is not a de Polignac number, because 129433419 - 2¹ = 129433417 is a prime.

It is a super-2 number, since 2×129433419² = 33506019908059122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129433411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70287 + ... + 72104.

It is an arithmetic number, because the mean of its divisors is an integer number (15734316).

Almost surely, 2^129433419 is an apocalyptic number.

129433419 is a deficient number, since it is larger than the sum of its proper divisors (59378373).

129433419 is a wasteful number, since it uses less digits than its factorization.

129433419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142498 (or 142495 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 129433419 is about 11376.8808994381. The cubic root of 129433419 is about 505.8426854513.

The spelling of 129433419 in words is "one hundred twenty-nine million, four hundred thirty-three thousand, four hundred nineteen".