126296321 has 4 divisors (see below), whose sum is σ = 126463044. Its totient is φ = 126129600.

The previous prime is 126296309. The next prime is 126296323. The reversal of 126296321 is 123692621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52765696 + 73530625 = 7264^2 + 8575^2 .

It is a cyclic number.

It is not a de Polignac number, because 126296321 - 2⁶ = 126296257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126296323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82220 + ... + 83741.

It is an arithmetic number, because the mean of its divisors is an integer number (31615761).

Almost surely, 2^126296321 is an apocalyptic number.

It is an amenable number.

126296321 is a deficient number, since it is larger than the sum of its proper divisors (166723).

126296321 is an equidigital number, since it uses as much as digits as its factorization.

126296321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166722.

The product of its digits is 7776, while the sum is 32.

The square root of 126296321 is about 11238.1635955346. The cubic root of 126296321 is about 501.7224872612.

The spelling of 126296321 in words is "one hundred twenty-six million, two hundred ninety-six thousand, three hundred twenty-one".