129295412 has 6 divisors (see below), whose sum is σ = 226266978. Its totient is φ = 64647704.

The previous prime is 129295409. The next prime is 129295423. The reversal of 129295412 is 214592921.

It can be written as a sum of positive squares in only one way, i.e., 94556176 + 34739236 = 9724^2 + 5894^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16161923 + ... + 16161930.

It is an arithmetic number, because the mean of its divisors is an integer number (37711163).

Almost surely, 2^129295412 is an apocalyptic number.

It is an amenable number.

129295412 is a deficient number, since it is larger than the sum of its proper divisors (96971566).

129295412 is a wasteful number, since it uses less digits than its factorization.

129295412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32323857 (or 32323855 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 129295412 is about 11370.8140429786. The cubic root of 129295412 is about 505.6628383967.

The spelling of 129295412 in words is "one hundred twenty-nine million, two hundred ninety-five thousand, four hundred twelve".