1421466251 has 2 divisors, whose sum is σ = 1421466252. Its totient is φ = 1421466250.

The previous prime is 1421466199. The next prime is 1421466257. The reversal of 1421466251 is 1526641241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421466251 - 2¹⁴ = 1421449867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421466257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710733125 + 710733126.

It is an arithmetic number, because the mean of its divisors is an integer number (710733126).

Almost surely, 2^1421466251 is an apocalyptic number.

1421466251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421466251 is an equidigital number, since it uses as much as digits as its factorization.

1421466251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 1421466251 is about 37702.3374739551. The cubic root of 1421466251 is about 1124.3775983726.

The spelling of 1421466251 in words is "one billion, four hundred twenty-one million, four hundred sixty-six thousand, two hundred fifty-one".