1329197 has 2 divisors, whose sum is σ = 1329198. Its totient is φ = 1329196.

The previous prime is 1329161. The next prime is 1329217. The reversal of 1329197 is 7919231.

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., 894916 + 434281 = 946^2 + 659^2 .

It is an emirp because it is prime and its reverse (7919231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1329197 - 2¹⁴ = 1312813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1329127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664598 + 664599.

It is an arithmetic number, because the mean of its divisors is an integer number (664599).

2^1329197 is an apocalyptic number.

It is an amenable number.

1329197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329197 is an equidigital number, since it uses as much as digits as its factorization.

1329197 is an evil number, because the sum of its binary digits is even.

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

The square root of 1329197 is about 1152.9080622495. The cubic root of 1329197 is about 109.9503081339.

The spelling of 1329197 in words is "one million, three hundred twenty-nine thousand, one hundred ninety-seven".