126312122 has 8 divisors (see below), whose sum is σ = 189548436. Its totient is φ = 63129312.

The previous prime is 126312101. The next prime is 126312127. The reversal of 126312122 is 221213621.

It can be written as a sum of positive squares in 2 ways, for example, as 116014441 + 10297681 = 10771^2 + 3209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 126312094 and 126312103.

It is not an unprimeable number, because it can be changed into a prime (126312127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6833 + ... + 17300.

Almost surely, 2^126312122 is an apocalyptic number.

126312122 is a deficient number, since it is larger than the sum of its proper divisors (63236314).

126312122 is a wasteful number, since it uses less digits than its factorization.

126312122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26752.

The product of its digits is 288, while the sum is 20.

The square root of 126312122 is about 11238.8665798647. The cubic root of 126312122 is about 501.7434099779.

Adding to 126312122 its reverse (221213621), we get a palindrome (347525743).

The spelling of 126312122 in words is "one hundred twenty-six million, three hundred twelve thousand, one hundred twenty-two".