129652926 has 16 divisors (see below), whose sum is σ = 279252624. Its totient is φ = 39893184.

The previous prime is 129652883. The next prime is 129652933. The reversal of 129652926 is 629256921.

It is a super-2 number, since 2×129652926² = 33619762440722952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831031 + ... + 831186.

It is an arithmetic number, because the mean of its divisors is an integer number (17453289).

Almost surely, 2^129652926 is an apocalyptic number.

129652926 is an abundant number, since it is smaller than the sum of its proper divisors (149599698).

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

129652926 is a wasteful number, since it uses less digits than its factorization.

129652926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662235.

The product of its digits is 116640, while the sum is 42.

The square root of 129652926 is about 11386.5238769345. The cubic root of 129652926 is about 506.1284779496.

The spelling of 129652926 in words is "one hundred twenty-nine million, six hundred fifty-two thousand, nine hundred twenty-six".