129601963 has 8 divisors (see below), whose sum is σ = 130469040. Its totient is φ = 128738400.

The previous prime is 129601951. The next prime is 129601993. The reversal of 129601963 is 369106921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129601963 - 2²⁵ = 96047531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129601933) 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, 122788 + ... + 123838.

It is an arithmetic number, because the mean of its divisors is an integer number (16308630).

Almost surely, 2^129601963 is an apocalyptic number.

129601963 is a deficient number, since it is larger than the sum of its proper divisors (867077).

129601963 is a wasteful number, since it uses less digits than its factorization.

129601963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 129601963 is about 11384.2857922665. The cubic root of 129601963 is about 506.0621541964.

The spelling of 129601963 in words is "one hundred twenty-nine million, six hundred one thousand, nine hundred sixty-three".