129937296 has 40 divisors (see below), whose sum is σ = 336853440. Its totient is φ = 43159936.

The previous prime is 129937289. The next prime is 129937309. The reversal of 129937296 is 692739921.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 9445 + ... + 18683.

It is an arithmetic number, because the mean of its divisors is an integer number (8421336).

Almost surely, 2^129937296 is an apocalyptic number.

129937296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129937296 is an abundant number, since it is smaller than the sum of its proper divisors (206916144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129937296 is a wasteful number, since it uses less digits than its factorization.

129937296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9543 (or 9537 counting only the distinct ones).

The product of its digits is 367416, while the sum is 48.

The square root of 129937296 is about 11399.0041670314. The cubic root of 129937296 is about 506.4982411868.

The spelling of 129937296 in words is "one hundred twenty-nine million, nine hundred thirty-seven thousand, two hundred ninety-six".