129194932 has 6 divisors (see below), whose sum is σ = 226091138. Its totient is φ = 64597464.

The previous prime is 129194911. The next prime is 129194939. The reversal of 129194932 is 239491921.

It can be written as a sum of positive squares in only one way, i.e., 128958736 + 236196 = 11356^2 + 486^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129194939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16149363 + ... + 16149370.

Almost surely, 2^129194932 is an apocalyptic number.

It is an amenable number.

129194932 is a deficient number, since it is larger than the sum of its proper divisors (96896206).

129194932 is a wasteful number, since it uses less digits than its factorization.

129194932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32298737 (or 32298735 counting only the distinct ones).

The product of its digits is 34992, while the sum is 40.

The square root of 129194932 is about 11366.3948550101. The cubic root of 129194932 is about 505.5318150069.

The spelling of 129194932 in words is "one hundred twenty-nine million, one hundred ninety-four thousand, nine hundred thirty-two".