126220113 has 20 divisors (see below), whose sum is σ = 196751808. Its totient is φ = 80487000.

The previous prime is 126220111. The next prime is 126220177. The reversal of 126220113 is 311022621.

It is not a de Polignac number, because 126220113 - 2¹ = 126220111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126220111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32013 + ... + 35738.

Almost surely, 2^126220113 is an apocalyptic number.

It is an amenable number.

126220113 is a deficient number, since it is larger than the sum of its proper divisors (70531695).

126220113 is an equidigital number, since it uses as much as digits as its factorization.

126220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67786 (or 67777 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 126220113 is about 11234.7724943588. The cubic root of 126220113 is about 501.6215527815.

Adding to 126220113 its reverse (311022621), we get a palindrome (437242734).

The spelling of 126220113 in words is "one hundred twenty-six million, two hundred twenty thousand, one hundred thirteen".