1431373 has 2 divisors, whose sum is σ = 1431374. Its totient is φ = 1431372.

The previous prime is 1431361. The next prime is 1431377. The reversal of 1431373 is 3731341.

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., 915849 + 515524 = 957^2 + 718^2 .

It is an emirp because it is prime and its reverse (3731341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1431373 - 2⁹ = 1430861 is a prime.

1431373 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431377) 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, 715686 + 715687.

It is an arithmetic number, because the mean of its divisors is an integer number (715687).

2^1431373 is an apocalyptic number.

It is an amenable number.

1431373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431373 is an equidigital number, since it uses as much as digits as its factorization.

1431373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 22.

The square root of 1431373 is about 1196.4000167168. The cubic root of 1431373 is about 112.6983627934.

Subtracting 1431373 from its reverse (3731341), we obtain a cube (2299968 = 132³).

The spelling of 1431373 in words is "one million, four hundred thirty-one thousand, three hundred seventy-three".