1431314281 has 2 divisors, whose sum is σ = 1431314282. Its totient is φ = 1431314280.

The previous prime is 1431314243. The next prime is 1431314317. The reversal of 1431314281 is 1824131341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 978688656 + 452625625 = 31284^2 + 21275^2 .

It is an emirp because it is prime and its reverse (1824131341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1431314281 - 2¹⁹ = 1430789993 is a prime.

It is a super-2 number, since 2×1431314281² = 4097321141989093922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1431314221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715657140 + 715657141.

It is an arithmetic number, because the mean of its divisors is an integer number (715657141).

Almost surely, 2^1431314281 is an apocalyptic number.

It is an amenable number.

1431314281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431314281 is an equidigital number, since it uses as much as digits as its factorization.

1431314281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 1431314281 is about 37832.7144281242. The cubic root of 1431314281 is about 1126.9682170301.

The spelling of 1431314281 in words is "one billion, four hundred thirty-one million, three hundred fourteen thousand, two hundred eighty-one".