129233474 has 4 divisors (see below), whose sum is σ = 193850214. Its totient is φ = 64616736.

The previous prime is 129233453. The next prime is 129233477. The reversal of 129233474 is 474332921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 113273449 + 15960025 = 10643^2 + 3995^2 .

It is not an unprimeable number, because it can be changed into a prime (129233477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32308367 + ... + 32308370.

Almost surely, 2^129233474 is an apocalyptic number.

129233474 is a deficient number, since it is larger than the sum of its proper divisors (64616740).

129233474 is an equidigital number, since it uses as much as digits as its factorization.

129233474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64616739.

The product of its digits is 36288, while the sum is 35.

The square root of 129233474 is about 11368.0901650189. The cubic root of 129233474 is about 505.5820808331.

The spelling of 129233474 in words is "one hundred twenty-nine million, two hundred thirty-three thousand, four hundred seventy-four".