126210063 has 16 divisors (see below), whose sum is σ = 192936960. Its totient is φ = 71888736.

The previous prime is 126210061. The next prime is 126210067. The reversal of 126210063 is 360012621.

It is a happy number.

It is not a de Polignac number, because 126210063 - 2¹ = 126210061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126210061) 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 15 ways as a sum of consecutive naturals, for example, 2823 + ... + 16136.

It is an arithmetic number, because the mean of its divisors is an integer number (12058560).

Almost surely, 2^126210063 is an apocalyptic number.

126210063 is a deficient number, since it is larger than the sum of its proper divisors (66726897).

126210063 is a wasteful number, since it uses less digits than its factorization.

126210063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19286.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 126210063 is about 11234.3252133806. The cubic root of 126210063 is about 501.6082389223.

Adding to 126210063 its reverse (360012621), we get a palindrome (486222684).

It can be divided in two parts, 1262 and 10063, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 126210063 in words is "one hundred twenty-six million, two hundred ten thousand, sixty-three".