129964851 has 16 divisors (see below), whose sum is σ = 196175520. Its totient is φ = 85007520.

The previous prime is 129964841. The next prime is 129964853. The reversal of 129964851 is 158469921.

It is not a de Polignac number, because 129964851 - 2¹⁷ = 129833779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129964797 and 129964806.

It is not an unprimeable number, because it can be changed into a prime (129964853) 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, 43980 + ... + 46841.

It is an arithmetic number, because the mean of its divisors is an integer number (12260970).

Almost surely, 2^129964851 is an apocalyptic number.

129964851 is a deficient number, since it is larger than the sum of its proper divisors (66210669).

129964851 is an equidigital number, since it uses as much as digits as its factorization.

129964851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90883 (or 90877 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 129964851 is about 11400.2127611725. The cubic root of 129964851 is about 506.5340419743.

The spelling of 129964851 in words is "one hundred twenty-nine million, nine hundred sixty-four thousand, eight hundred fifty-one".