129842152 has 32 divisors (see below), whose sum is σ = 266270400. Its totient is φ = 58867200.

The previous prime is 129842149. The next prime is 129842159. The reversal of 129842152 is 251248921.

It is a super-2 number, since 2×129842152² = 33717968871982208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129842159) 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, 36952 + ... + 40312.

It is an arithmetic number, because the mean of its divisors is an integer number (8320950).

Almost surely, 2^129842152 is an apocalyptic number.

It is an amenable number.

129842152 is an abundant number, since it is smaller than the sum of its proper divisors (136428248).

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

129842152 is a wasteful number, since it uses less digits than its factorization.

129842152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817 (or 3813 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 129842152 is about 11394.8300557753. The cubic root of 129842152 is about 506.3745865804.

The spelling of 129842152 in words is "one hundred twenty-nine million, eight hundred forty-two thousand, one hundred fifty-two".