129647152 has 20 divisors (see below), whose sum is σ = 251510440. Its totient is φ = 64741248.

The previous prime is 129647129. The next prime is 129647173. The reversal of 129647152 is 251746921.

It is a super-2 number, since 2×129647152² = 33616768043422208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9028 + ... + 18460.

It is an arithmetic number, because the mean of its divisors is an integer number (12575522).

Almost surely, 2^129647152 is an apocalyptic number.

It is an amenable number.

129647152 is a deficient number, since it is larger than the sum of its proper divisors (121863288).

129647152 is an equidigital number, since it uses as much as digits as its factorization.

129647152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300 (or 10294 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 129647152 is about 11386.2703287775. The cubic root of 129647152 is about 506.1209644819.

The spelling of 129647152 in words is "one hundred twenty-nine million, six hundred forty-seven thousand, one hundred fifty-two".