1372374449 has 2 divisors, whose sum is σ = 1372374450. Its totient is φ = 1372374448.

The previous prime is 1372374431. The next prime is 1372374473. The reversal of 1372374449 is 9444732731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089462049 + 282912400 = 33007^2 + 16820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372374449 - 2²⁰ = 1371325873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1372374499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686187224 + 686187225.

It is an arithmetic number, because the mean of its divisors is an integer number (686187225).

Almost surely, 2^1372374449 is an apocalyptic number.

It is an amenable number.

1372374449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372374449 is an equidigital number, since it uses as much as digits as its factorization.

1372374449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 44.

The square root of 1372374449 is about 37045.5725964656. The cubic root of 1372374449 is about 1111.2818157433.

The spelling of 1372374449 in words is "one billion, three hundred seventy-two million, three hundred seventy-four thousand, four hundred forty-nine".