1420254281 has 2 divisors, whose sum is σ = 1420254282. Its totient is φ = 1420254280.

The previous prime is 1420254263. The next prime is 1420254317. The reversal of 1420254281 is 1824520241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230255625 + 189998656 = 35075^2 + 13784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420254281 is a prime.

It is a super-2 number, since 2×1420254281² = 4034244445397653922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1420254221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710127140 + 710127141.

It is an arithmetic number, because the mean of its divisors is an integer number (710127141).

Almost surely, 2^1420254281 is an apocalyptic number.

It is an amenable number.

1420254281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420254281 is an equidigital number, since it uses as much as digits as its factorization.

1420254281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 1420254281 is about 37686.2611703523. The cubic root of 1420254281 is about 1124.0579520468.

The spelling of 1420254281 in words is "one billion, four hundred twenty million, two hundred fifty-four thousand, two hundred eighty-one".