129299794 has 8 divisors (see below), whose sum is σ = 208868940. Its totient is φ = 59676816.

The previous prime is 129299783. The next prime is 129299801. The reversal of 129299794 is 497992921.

It can be written as a sum of positive squares in 2 ways, for example, as 124612569 + 4687225 = 11163^2 + 2165^2 .

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, 2486509 + ... + 2486560.

Almost surely, 2^129299794 is an apocalyptic number.

129299794 is a deficient number, since it is larger than the sum of its proper divisors (79569146).

129299794 is a wasteful number, since it uses less digits than its factorization.

129299794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973084.

The product of its digits is 734832, while the sum is 52.

The square root of 129299794 is about 11371.0067276385. The cubic root of 129299794 is about 505.6685508694.

The spelling of 129299794 in words is "one hundred twenty-nine million, two hundred ninety-nine thousand, seven hundred ninety-four".