129616490 has 16 divisors (see below), whose sum is σ = 233470080. Its totient is φ = 51810960.

The previous prime is 129616489. The next prime is 129616507. The reversal of 129616490 is 94616921.

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, 14771 + ... + 21849.

It is an arithmetic number, because the mean of its divisors is an integer number (14591880).

Almost surely, 2^129616490 is an apocalyptic number.

129616490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129616490 is a deficient number, since it is larger than the sum of its proper divisors (103853590).

129616490 is a wasteful number, since it uses less digits than its factorization.

129616490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8917.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 129616490 is about 11384.9238029949. The cubic root of 129616490 is about 506.0810615496.

The spelling of 129616490 in words is "one hundred twenty-nine million, six hundred sixteen thousand, four hundred ninety".