129894962 has 6 divisors (see below), whose sum is σ = 194866623. Its totient is φ = 64939422.

The previous prime is 129894953. The next prime is 129894967. The reversal of 129894962 is 269498921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64947481 + 64947481 = 8059^2 + 8059^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8059.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129894962.

It is not an unprimeable number, because it can be changed into a prime (129894967) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12089 + ... + 20147.

Almost surely, 2^129894962 is an apocalyptic number.

129894962 is a deficient number, since it is larger than the sum of its proper divisors (64971661).

129894962 is an frugal number, since it uses more digits than its factorization.

129894962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16120 (or 8061 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 129894962 is about 11397.1470991648. The cubic root of 129894962 is about 506.4432289456.

Multiplying 129894962 by its sum of digits (50), we get a square (6494748100 = 80590²).

The spelling of 129894962 in words is "one hundred twenty-nine million, eight hundred ninety-four thousand, nine hundred sixty-two".