1013217197 has 2 divisors, whose sum is σ = 1013217198. Its totient is φ = 1013217196.

The previous prime is 1013217181. The next prime is 1013217203. The reversal of 1013217197 is 7917123101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1005270436 + 7946761 = 31706^2 + 2819^2 .

It is an emirp because it is prime and its reverse (7917123101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1013217197 - 2⁴ = 1013217181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013217157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506608598 + 506608599.

It is an arithmetic number, because the mean of its divisors is an integer number (506608599).

Almost surely, 2^1013217197 is an apocalyptic number.

It is an amenable number.

1013217197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013217197 is an equidigital number, since it uses as much as digits as its factorization.

1013217197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 1013217197 is about 31831.0728220084. The cubic root of 1013217197 is about 1004.3864631410.

The spelling of 1013217197 in words is "one billion, thirteen million, two hundred seventeen thousand, one hundred ninety-seven".