1431343919 has 2 divisors, whose sum is σ = 1431343920. Its totient is φ = 1431343918.

The previous prime is 1431343871. The next prime is 1431343933. The reversal of 1431343919 is 9193431341.

It is a strong prime.

It is an emirp because it is prime and its reverse (9193431341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1431343919 - 2²⁰ = 1430295343 is a prime.

It is a super-2 number, since 2×1431343919² = 4097490828916557122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431343019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715671959 + 715671960.

It is an arithmetic number, because the mean of its divisors is an integer number (715671960).

Almost surely, 2^1431343919 is an apocalyptic number.

1431343919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431343919 is an equidigital number, since it uses as much as digits as its factorization.

1431343919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 1431343919 is about 37833.1061241342. The cubic root of 1431343919 is about 1126.9759956277.

The spelling of 1431343919 in words is "one billion, four hundred thirty-one million, three hundred forty-three thousand, nine hundred nineteen".