129401310 has 32 divisors (see below), whose sum is σ = 311123232. Its totient is φ = 34444800.

The previous prime is 129401309. The next prime is 129401323. The reversal of 129401310 is 13104921.

It is a super-2 number, since 2×129401310² = 33489398059432200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14442 + ... + 21618.

It is an arithmetic number, because the mean of its divisors is an integer number (9722601).

Almost surely, 2^129401310 is an apocalyptic number.

129401310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129401310 is an abundant number, since it is smaller than the sum of its proper divisors (181721922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129401310 is a wasteful number, since it uses less digits than its factorization.

129401310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 129401310 is about 11375.4696606338. The cubic root of 129401310 is about 505.8008532718.

The spelling of 129401310 in words is "one hundred twenty-nine million, four hundred one thousand, three hundred ten".