1014163981 has 2 divisors, whose sum is σ = 1014163982. Its totient is φ = 1014163980.

The previous prime is 1014163939. The next prime is 1014163999. The reversal of 1014163981 is 1893614101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541492900 + 472671081 = 23270^2 + 21741^2 .

It is an emirp because it is prime and its reverse (1893614101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1014163981 - 2²⁵ = 980609549 is a prime.

It is a super-2 number, since 2×1014163981² = 2057057160715536722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1014163681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507081990 + 507081991.

It is an arithmetic number, because the mean of its divisors is an integer number (507081991).

Almost surely, 2^1014163981 is an apocalyptic number.

It is an amenable number.

1014163981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1014163981 is an equidigital number, since it uses as much as digits as its factorization.

1014163981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1014163981 is about 31845.9413583584. The cubic root of 1014163981 is about 1004.6992098367.

The spelling of 1014163981 in words is "one billion, fourteen million, one hundred sixty-three thousand, nine hundred eighty-one".