129746434 has 8 divisors (see below), whose sum is σ = 194721660. Its totient is φ = 64839216.

The previous prime is 129746429. The next prime is 129746467. The reversal of 129746434 is 434647921.

It can be written as a sum of positive squares in 2 ways, for example, as 82755409 + 46991025 = 9097^2 + 6855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11929 + ... + 20044.

Almost surely, 2^129746434 is an apocalyptic number.

129746434 is a deficient number, since it is larger than the sum of its proper divisors (64975226).

129746434 is a wasteful number, since it uses less digits than its factorization.

129746434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34004.

The product of its digits is 145152, while the sum is 40.

The square root of 129746434 is about 11390.6292187921. The cubic root of 129746434 is about 506.2501250012.

The spelling of 129746434 in words is "one hundred twenty-nine million, seven hundred forty-six thousand, four hundred thirty-four".