126861228 has 60 divisors (see below), whose sum is σ = 357162960. Its totient is φ = 39032928.

The previous prime is 126861227. The next prime is 126861247. The reversal of 126861228 is 822168621.

126861228 is a `hidden beast` number, since 12 + 6 + 8 + 612 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 126861192 and 126861201.

It is not an unprimeable number, because it can be changed into a prime (126861227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10848 + ... + 19271.

It is an arithmetic number, because the mean of its divisors is an integer number (5952716).

Almost surely, 2^126861228 is an apocalyptic number.

126861228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126861228 is an abundant number, since it is smaller than the sum of its proper divisors (230301732).

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

126861228 is a wasteful number, since it uses less digits than its factorization.

126861228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30148 (or 30137 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 126861228 is about 11263.2689748581. The cubic root of 126861228 is about 502.4694211733.

The spelling of 126861228 in words is "one hundred twenty-six million, eight hundred sixty-one thousand, two hundred twenty-eight".