1392197 has 2 divisors, whose sum is σ = 1392198. Its totient is φ = 1392196.

The previous prime is 1392163. The next prime is 1392221. The reversal of 1392197 is 7912931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 872356 + 519841 = 934^2 + 721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1392197 - 2⁶ = 1392133 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696098 + 696099.

It is an arithmetic number, because the mean of its divisors is an integer number (696099).

2^1392197 is an apocalyptic number.

It is an amenable number.

1392197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392197 is an equidigital number, since it uses as much as digits as its factorization.

1392197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 32.

The square root of 1392197 is about 1179.9139799155. The cubic root of 1392197 is about 111.6606704535.

The spelling of 1392197 in words is "one million, three hundred ninety-two thousand, one hundred ninety-seven".