129952001 has 16 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 114871680.

The previous prime is 129951949. The next prime is 129952013. The reversal of 129952001 is 100259921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129952001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129952091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14291 + ... + 21543.

It is an arithmetic number, because the mean of its divisors is an integer number (9140040).

Almost surely, 2^129952001 is an apocalyptic number.

It is an amenable number.

129952001 is a deficient number, since it is larger than the sum of its proper divisors (16288639).

129952001 is a wasteful number, since it uses less digits than its factorization.

129952001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 129952001 is about 11399.6491612681. The cubic root of 129952001 is about 506.5173472631.

The spelling of 129952001 in words is "one hundred twenty-nine million, nine hundred fifty-two thousand, one".