126156120 has 32 divisors (see below), whose sum is σ = 378468720. Its totient is φ = 33641600.

The previous prime is 126156091. The next prime is 126156193. The reversal of 126156120 is 21651621.

It is a super-2 number, since 2×126156120² = 31830733226908800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525531 + ... + 525770.

Almost surely, 2^126156120 is an apocalyptic number.

126156120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126156120 is an abundant number, since it is smaller than the sum of its proper divisors (252312600).

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

126156120 is a wasteful number, since it uses less digits than its factorization.

126156120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051315 (or 1051311 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 126156120 is about 11231.9241450430. The cubic root of 126156120 is about 501.5367651997.

The spelling of 126156120 in words is "one hundred twenty-six million, one hundred fifty-six thousand, one hundred twenty".