126543222 has 48 divisors (see below), whose sum is σ = 306218640. Its totient is φ = 38934432.

The previous prime is 126543191. The next prime is 126543233. The reversal of 126543222 is 222345621.

It is a happy number.

126543222 is a `hidden beast` number, since 1 + 2 + 654 + 3 + 2 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3697 + ... + 16332.

It is an arithmetic number, because the mean of its divisors is an integer number (6379555).

Almost surely, 2^126543222 is an apocalyptic number.

126543222 is an abundant number, since it is smaller than the sum of its proper divisors (179675418).

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

126543222 is a wasteful number, since it uses less digits than its factorization.

126543222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20059 (or 20047 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 126543222 is about 11249.1431673706. The cubic root of 126543222 is about 502.0492192605.

Adding to 126543222 its reverse (222345621), we get a palindrome (348888843).

It can be divided in two parts, 12654 and 3222, that added together give a square (15876 = 126²).

The spelling of 126543222 in words is "one hundred twenty-six million, five hundred forty-three thousand, two hundred twenty-two".