129376270 has 16 divisors (see below), whose sum is σ = 233064288. Its totient is φ = 51708960.

The previous prime is 129376267. The next prime is 129376319. The reversal of 129376270 is 72673921.

It is a super-2 number, since 2×129376270² = 33476438478225800, 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 7 ways as a sum of consecutive naturals, for example, 10000 + ... + 18940.

It is an arithmetic number, because the mean of its divisors is an integer number (14566518).

Almost surely, 2^129376270 is an apocalyptic number.

129376270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129376270 is a deficient number, since it is larger than the sum of its proper divisors (103688018).

129376270 is a wasteful number, since it uses less digits than its factorization.

129376270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10395.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 129376270 is about 11374.3689934871. The cubic root of 129376270 is about 505.7682259092.

The spelling of 129376270 in words is "one hundred twenty-nine million, three hundred seventy-six thousand, two hundred seventy".