129014890 has 16 divisors (see below), whose sum is σ = 232759008. Its totient is φ = 51487696.

The previous prime is 129014861. The next prime is 129014911. The reversal of 129014890 is 98410921.

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, 10132 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (14547438).

Almost surely, 2^129014890 is an apocalyptic number.

129014890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129014890 is a deficient number, since it is larger than the sum of its proper divisors (103744118).

129014890 is a wasteful number, since it uses less digits than its factorization.

129014890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29573.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 129014890 is about 11358.4721683860. The cubic root of 129014890 is about 505.2968747507.

The spelling of 129014890 in words is "one hundred twenty-nine million, fourteen thousand, eight hundred ninety".