1372643453 has 2 divisors, whose sum is σ = 1372643454. Its totient is φ = 1372643452.

The previous prime is 1372643383. The next prime is 1372643471. The reversal of 1372643453 is 3543462731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737502649 + 635140804 = 27157^2 + 25202^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372643453 - 2²⁰ = 1371594877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372643483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686321726 + 686321727.

It is an arithmetic number, because the mean of its divisors is an integer number (686321727).

Almost surely, 2^1372643453 is an apocalyptic number.

It is an amenable number.

1372643453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372643453 is an equidigital number, since it uses as much as digits as its factorization.

1372643453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 38.

The square root of 1372643453 is about 37049.2031358301. The cubic root of 1372643453 is about 1111.3544197677.

The spelling of 1372643453 in words is "one billion, three hundred seventy-two million, six hundred forty-three thousand, four hundred fifty-three".