129433413 has 4 divisors (see below), whose sum is σ = 172577888. Its totient is φ = 86288940.

The previous prime is 129433411. The next prime is 129433417. The reversal of 129433413 is 314334921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 129433413 - 2¹ = 129433411 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21572233 + ... + 21572238.

It is an arithmetic number, because the mean of its divisors is an integer number (43144472).

Almost surely, 2^129433413 is an apocalyptic number.

It is an amenable number.

129433413 is a deficient number, since it is larger than the sum of its proper divisors (43144475).

129433413 is an equidigital number, since it uses as much as digits as its factorization.

129433413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43144474.

The product of its digits is 7776, while the sum is 30.

The square root of 129433413 is about 11376.8806357455. The cubic root of 129433413 is about 505.8426776350.

The spelling of 129433413 in words is "one hundred twenty-nine million, four hundred thirty-three thousand, four hundred thirteen".