129627494 has 16 divisors (see below), whose sum is σ = 204029280. Its totient is φ = 61649280.

The previous prime is 129627493. The next prime is 129627581. The reversal of 129627494 is 494726921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129627493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542 + ... + 16110.

It is an arithmetic number, because the mean of its divisors is an integer number (12751830).

Almost surely, 2^129627494 is an apocalyptic number.

129627494 is a deficient number, since it is larger than the sum of its proper divisors (74401786).

129627494 is a wasteful number, since it uses less digits than its factorization.

129627494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15775.

The product of its digits is 217728, while the sum is 44.

The square root of 129627494 is about 11385.4070634299. The cubic root of 129627494 is about 506.0953826657.

The spelling of 129627494 in words is "one hundred twenty-nine million, six hundred twenty-seven thousand, four hundred ninety-four".