126205224 has 32 divisors (see below), whose sum is σ = 324042720. Its totient is φ = 40931136.

The previous prime is 126205223. The next prime is 126205253. The reversal of 126205224 is 422502621.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 126205194 and 126205203.

It is not an unprimeable number, because it can be changed into a prime (126205223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70174 + ... + 71949.

It is an arithmetic number, because the mean of its divisors is an integer number (10126335).

Almost surely, 2^126205224 is an apocalyptic number.

It is an amenable number.

126205224 is an abundant number, since it is smaller than the sum of its proper divisors (197837496).

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

126205224 is a wasteful number, since it uses less digits than its factorization.

126205224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142169 (or 142165 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 126205224 is about 11234.1098445760. The cubic root of 126205224 is about 501.6018281464.

Adding to 126205224 its reverse (422502621), we get a palindrome (548707845).

The spelling of 126205224 in words is "one hundred twenty-six million, two hundred five thousand, two hundred twenty-four".