129564051 has 16 divisors (see below), whose sum is σ = 174873600. Its totient is φ = 85322048.

The previous prime is 129563999. The next prime is 129564073. The reversal of 129564051 is 150465921.

It is a cyclic number.

It is not a de Polignac number, because 129564051 - 2¹¹ = 129562003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129564091) 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, 97570 + ... + 98888.

It is an arithmetic number, because the mean of its divisors is an integer number (10929600).

Almost surely, 2^129564051 is an apocalyptic number.

129564051 is a deficient number, since it is larger than the sum of its proper divisors (45309549).

129564051 is a wasteful number, since it uses less digits than its factorization.

129564051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 129564051 is about 11382.6205682171. The cubic root of 129564051 is about 506.0128038650.

The spelling of 129564051 in words is "one hundred twenty-nine million, five hundred sixty-four thousand, fifty-one".