1397067193 has 2 divisors, whose sum is σ = 1397067194. Its totient is φ = 1397067192.

The previous prime is 1397067149. The next prime is 1397067197. The reversal of 1397067193 is 3917607931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1336414249 + 60652944 = 36557^2 + 7788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1397067193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1397067197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698533596 + 698533597.

It is an arithmetic number, because the mean of its divisors is an integer number (698533597).

Almost surely, 2^1397067193 is an apocalyptic number.

It is an amenable number.

1397067193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397067193 is an equidigital number, since it uses as much as digits as its factorization.

1397067193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 1397067193 is about 37377.3620390739. The cubic root of 1397067193 is about 1117.9072295956.

The spelling of 1397067193 in words is "one billion, three hundred ninety-seven million, sixty-seven thousand, one hundred ninety-three".