1463422981 has 2 divisors, whose sum is σ = 1463422982. Its totient is φ = 1463422980.

The previous prime is 1463422967. The next prime is 1463423009. The reversal of 1463422981 is 1892243641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1249269025 + 214153956 = 35345^2 + 14634^2 .

It is a cyclic number.

It is not a de Polignac number, because 1463422981 - 2⁵ = 1463422949 is a prime.

It is a super-2 number, since 2×1463422981² = 4283213642637852722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1463422901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731711490 + 731711491.

It is an arithmetic number, because the mean of its divisors is an integer number (731711491).

Almost surely, 2^1463422981 is an apocalyptic number.

It is an amenable number.

1463422981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463422981 is an equidigital number, since it uses as much as digits as its factorization.

1463422981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 1463422981 is about 38254.7118797149. The cubic root of 1463422981 is about 1135.3330754112. Note that the first 3 decimals are identical.

The spelling of 1463422981 in words is "one billion, four hundred sixty-three million, four hundred twenty-two thousand, nine hundred eighty-one".