1426323653 has 4 divisors (see below), whose sum is σ = 1427320428. Its totient is φ = 1425326880.

The previous prime is 1426323641. The next prime is 1426323659. The reversal of 1426323653 is 3563236241.

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 703681729 + 722641924 = 26527^2 + 26882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426323653 - 2²⁶ = 1359214789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426323659) 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, 496238 + ... + 499103.

It is an arithmetic number, because the mean of its divisors is an integer number (356830107).

Almost surely, 2^1426323653 is an apocalyptic number.

It is an amenable number.

1426323653 is a deficient number, since it is larger than the sum of its proper divisors (996775).

1426323653 is an equidigital number, since it uses as much as digits as its factorization.

1426323653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996774.

The product of its digits is 77760, while the sum is 35.

The square root of 1426323653 is about 37766.7003191965. The cubic root of 1426323653 is about 1125.6568747869.

Adding to 1426323653 its reverse (3563236241), we get a palindrome (4989559894).

The spelling of 1426323653 in words is "one billion, four hundred twenty-six million, three hundred twenty-three thousand, six hundred fifty-three".