1468311281 has 2 divisors, whose sum is σ = 1468311282. Its totient is φ = 1468311280.

The previous prime is 1468311259. The next prime is 1468311323. The reversal of 1468311281 is 1821138641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1398086881 + 70224400 = 37391^2 + 8380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1468311281 - 2⁶ = 1468311217 is a prime.

It is a super-2 number, since 2×1468311281² = 4311876035823721922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1468311211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 734155640 + 734155641.

It is an arithmetic number, because the mean of its divisors is an integer number (734155641).

Almost surely, 2^1468311281 is an apocalyptic number.

It is an amenable number.

1468311281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1468311281 is an equidigital number, since it uses as much as digits as its factorization.

1468311281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 35.

The square root of 1468311281 is about 38318.5500900021. The cubic root of 1468311281 is about 1136.5957954779.

The spelling of 1468311281 in words is "one billion, four hundred sixty-eight million, three hundred eleven thousand, two hundred eighty-one".