126018249 has 12 divisors (see below), whose sum is σ = 195457104. Its totient is φ = 72010344.

The previous prime is 126018239. The next prime is 126018257. The reversal of 126018249 is 942810621.

It is not a de Polignac number, because 126018249 - 2⁷ = 126018121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126018239) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 428487 + ... + 428780.

It is an arithmetic number, because the mean of its divisors is an integer number (16288092).

Almost surely, 2^126018249 is an apocalyptic number.

It is an amenable number.

126018249 is a deficient number, since it is larger than the sum of its proper divisors (69438855).

126018249 is an equidigital number, since it uses as much as digits as its factorization.

126018249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857284 (or 857277 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 126018249 is about 11225.7850059584. The cubic root of 126018249 is about 501.3539954164.

The spelling of 126018249 in words is "one hundred twenty-six million, eighteen thousand, two hundred forty-nine".