1431449 has 2 divisors, whose sum is σ = 1431450. Its totient is φ = 1431448.

The previous prime is 1431439. The next prime is 1431461. The reversal of 1431449 is 9441341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 85849 = 1160^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431449 - 2⁸ = 1431193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431439) 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, 715724 + 715725.

It is an arithmetic number, because the mean of its divisors is an integer number (715725).

2^1431449 is an apocalyptic number.

It is an amenable number.

1431449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431449 is an equidigital number, since it uses as much as digits as its factorization.

1431449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 1431449 is about 1196.4317782473. The cubic root of 1431449 is about 112.7003573641.

The spelling of 1431449 in words is "one million, four hundred thirty-one thousand, four hundred forty-nine".