1314809 has 2 divisors, whose sum is σ = 1314810. Its totient is φ = 1314808.

The previous prime is 1314779. The next prime is 1314821. The reversal of 1314809 is 9084131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 222784 = 1045^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1314809 - 2¹⁶ = 1249273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1314109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657404 + 657405.

It is an arithmetic number, because the mean of its divisors is an integer number (657405).

2^1314809 is an apocalyptic number.

It is an amenable number.

1314809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314809 is an equidigital number, since it uses as much as digits as its factorization.

1314809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1314809 is about 1146.6512111362. The cubic root of 1314809 is about 109.5521460242.

The spelling of 1314809 in words is "one million, three hundred fourteen thousand, eight hundred nine".