1338079453 has 2 divisors, whose sum is σ = 1338079454. Its totient is φ = 1338079452.

The previous prime is 1338079447. The next prime is 1338079529. The reversal of 1338079453 is 3549708331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1333491289 + 4588164 = 36517^2 + 2142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338079453 - 2⁹ = 1338078941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338079423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669039726 + 669039727.

It is an arithmetic number, because the mean of its divisors is an integer number (669039727).

Almost surely, 2^1338079453 is an apocalyptic number.

It is an amenable number.

1338079453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338079453 is an equidigital number, since it uses as much as digits as its factorization.

1338079453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 1338079453 is about 36579.7683562923. The cubic root of 1338079453 is about 1101.9468149667.

The spelling of 1338079453 in words is "one billion, three hundred thirty-eight million, seventy-nine thousand, four hundred fifty-three".