129734311 has 24 divisors (see below), whose sum is σ = 156900480. Its totient is φ = 106877232.

The previous prime is 129734303. The next prime is 129734317. The reversal of 129734311 is 113437921.

It is not a de Polignac number, because 129734311 - 2³ = 129734303 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 (129734317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140710 + ... + 141628.

It is an arithmetic number, because the mean of its divisors is an integer number (6537520).

Almost surely, 2^129734311 is an apocalyptic number.

129734311 is a deficient number, since it is larger than the sum of its proper divisors (27166169).

129734311 is an equidigital number, since it uses as much as digits as its factorization.

129734311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1036 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 129734311 is about 11390.0970584100. The cubic root of 129734311 is about 506.2343571654.

The spelling of 129734311 in words is "one hundred twenty-nine million, seven hundred thirty-four thousand, three hundred eleven".