126955830 has 64 divisors (see below), whose sum is σ = 326358720. Its totient is φ = 31494144.

The previous prime is 126955811. The next prime is 126955861. The reversal of 126955830 is 38559621.

It is a super-2 number, since 2×126955830² = 32235565541977800, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 43992 + ... + 46788.

It is an arithmetic number, because the mean of its divisors is an integer number (5099355).

Almost surely, 2^126955830 is an apocalyptic number.

126955830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126955830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163179360).

126955830 is an abundant number, since it is smaller than the sum of its proper divisors (199402890).

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

126955830 is a wasteful number, since it uses less digits than its factorization.

126955830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 126955830 is about 11267.4677723080. The cubic root of 126955830 is about 502.5942893780.

The spelling of 126955830 in words is "one hundred twenty-six million, nine hundred fifty-five thousand, eight hundred thirty".