1372459321 has 2 divisors, whose sum is σ = 1372459322. Its totient is φ = 1372459320.

The previous prime is 1372459271. The next prime is 1372459331. The reversal of 1372459321 is 1239542731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 694586025 + 677873296 = 26355^2 + 26036^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372459321 - 2⁹ = 1372458809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1372459331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686229660 + 686229661.

It is an arithmetic number, because the mean of its divisors is an integer number (686229661).

Almost surely, 2^1372459321 is an apocalyptic number.

It is an amenable number.

1372459321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372459321 is an equidigital number, since it uses as much as digits as its factorization.

1372459321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 1372459321 is about 37046.7180867617. The cubic root of 1372459321 is about 1111.3047236715.

The spelling of 1372459321 in words is "one billion, three hundred seventy-two million, four hundred fifty-nine thousand, three hundred twenty-one".