1372666573 has 2 divisors, whose sum is σ = 1372666574. Its totient is φ = 1372666572.

The previous prime is 1372666531. The next prime is 1372666579. The reversal of 1372666573 is 3756662731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 762477769 + 610188804 = 27613^2 + 24702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372666573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372666579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686333286 + 686333287.

It is an arithmetic number, because the mean of its divisors is an integer number (686333287).

Almost surely, 2^1372666573 is an apocalyptic number.

It is an amenable number.

1372666573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372666573 is an equidigital number, since it uses as much as digits as its factorization.

1372666573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 46.

The square root of 1372666573 is about 37049.5151520232. The cubic root of 1372666573 is about 1111.3606593996.

The spelling of 1372666573 in words is "one billion, three hundred seventy-two million, six hundred sixty-six thousand, five hundred seventy-three".