129652 has 6 divisors (see below), whose sum is σ = 226898. Its totient is φ = 64824.

The previous prime is 129643. The next prime is 129671. The reversal of 129652 is 256921.

It can be written as a sum of positive squares in only one way, i.e., 126736 + 2916 = 356^2 + 54^2 .

It is a super-2 number, since 2×129652² = 33619282208, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16203 + ... + 16210.

2¹²⁹⁶⁵² is an apocalyptic number.

It is an amenable number.

129652 is a deficient number, since it is larger than the sum of its proper divisors (97246).

129652 is a wasteful number, since it uses less digits than its factorization.

129652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32417 (or 32415 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 129652 is about 360.0722149792. The cubic root of 129652 is about 50.6127272999.

The spelling of 129652 in words is "one hundred twenty-nine thousand, six hundred fifty-two".