129966562 has 16 divisors (see below), whose sum is σ = 217199232. Its totient is φ = 57818320.

The previous prime is 129966559. The next prime is 129966563. The reversal of 129966562 is 265669921.

It is not an unprimeable number, because it can be changed into a prime (129966563) 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, 61813 + ... + 63880.

It is an arithmetic number, because the mean of its divisors is an integer number (13574952).

Almost surely, 2^129966562 is an apocalyptic number.

129966562 is a deficient number, since it is larger than the sum of its proper divisors (87232670).

129966562 is a wasteful number, since it uses less digits than its factorization.

129966562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125753.

The product of its digits is 349920, while the sum is 46.

The square root of 129966562 is about 11400.2878033846. The cubic root of 129966562 is about 506.5362648214.

The spelling of 129966562 in words is "one hundred twenty-nine million, nine hundred sixty-six thousand, five hundred sixty-two".