126129396 has 12 divisors (see below), whose sum is σ = 294301952. Its totient is φ = 42043128.

The previous prime is 126129383. The next prime is 126129403. The reversal of 126129396 is 693921621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5255380 + ... + 5255403.

Almost surely, 2^126129396 is an apocalyptic number.

It is an amenable number.

126129396 is an abundant number, since it is smaller than the sum of its proper divisors (168172556).

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

126129396 is a wasteful number, since it uses less digits than its factorization.

126129396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10510790 (or 10510788 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 126129396 is about 11230.7344372485. The cubic root of 126129396 is about 501.5013487252.

The spelling of 126129396 in words is "one hundred twenty-six million, one hundred twenty-nine thousand, three hundred ninety-six".