1307197 has 2 divisors, whose sum is σ = 1307198. Its totient is φ = 1307196.

The previous prime is 1307183. The next prime is 1307209. The reversal of 1307197 is 7917031.

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., 1125721 + 181476 = 1061^2 + 426^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307197 - 2⁷ = 1307069 is a prime.

It is a Chen 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 (1307107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653598 + 653599.

It is an arithmetic number, because the mean of its divisors is an integer number (653599).

2^1307197 is an apocalyptic number.

It is an amenable number.

1307197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307197 is an equidigital number, since it uses as much as digits as its factorization.

1307197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1323, while the sum is 28.

The square root of 1307197 is about 1143.3271622768. The cubic root of 1307197 is about 109.3403217408.

The spelling of 1307197 in words is "one million, three hundred seven thousand, one hundred ninety-seven".