1323149 has 2 divisors, whose sum is σ = 1323150. Its totient is φ = 1323148.

The previous prime is 1323143. The next prime is 1323169. The reversal of 1323149 is 9413231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1177225 + 145924 = 1085^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323149 - 2¹² = 1319053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661574 + 661575.

It is an arithmetic number, because the mean of its divisors is an integer number (661575).

2^1323149 is an apocalyptic number.

It is an amenable number.

1323149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323149 is an equidigital number, since it uses as much as digits as its factorization.

1323149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 1323149 is about 1150.2821393032. The cubic root of 1323149 is about 109.7832923595.

The spelling of 1323149 in words is "one million, three hundred twenty-three thousand, one hundred forty-nine".