126729120 has 96 divisors (see below), whose sum is σ = 456236928. Its totient is φ = 28965888.

The previous prime is 126729089. The next prime is 126729139. The reversal of 126729120 is 21927621.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15499 + ... + 22218.

It is an arithmetic number, because the mean of its divisors is an integer number (4752468).

Almost surely, 2^126729120 is an apocalyptic number.

126729120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126729120 is an abundant number, since it is smaller than the sum of its proper divisors (329507808).

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

126729120 is a wasteful number, since it uses less digits than its factorization.

126729120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37742 (or 37734 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 126729120 is about 11257.4028976492. The cubic root of 126729120 is about 502.2949436844.

The spelling of 126729120 in words is "one hundred twenty-six million, seven hundred twenty-nine thousand, one hundred twenty".