129652029 has 32 divisors (see below), whose sum is σ = 217750400. Its totient is φ = 75582720.

The previous prime is 129652021. The next prime is 129652051. The reversal of 129652029 is 920256921.

It is a happy number.

129652029 is a `hidden beast` number, since 129 + 6 + 520 + 2 + 9 = 666.

It is not a de Polignac number, because 129652029 - 2³ = 129652021 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129651984 and 129652002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129652021) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3052 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (6804700).

Almost surely, 2^129652029 is an apocalyptic number.

129652029 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

129652029 is a deficient number, since it is larger than the sum of its proper divisors (88098371).

129652029 is a wasteful number, since it uses less digits than its factorization.

129652029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19482 (or 19476 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 129652029 is about 11386.4844881992. The cubic root of 129652029 is about 506.1273107352.

The spelling of 129652029 in words is "one hundred twenty-nine million, six hundred fifty-two thousand, twenty-nine".