1413401309981 has 2 divisors, whose sum is σ = 1413401309982. Its totient is φ = 1413401309980.

The previous prime is 1413401309939. The next prime is 1413401310007. The reversal of 1413401309981 is 1899031043141.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1409999504356 + 3401805625 = 1187434^2 + 58325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1413401309981 - 2¹⁴ = 1413401293597 is a prime.

It is a super-2 number, since 2×1413401309981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1413401309581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706700654990 + 706700654991.

It is an arithmetic number, because the mean of its divisors is an integer number (706700654991).

Almost surely, 2^{1413401309981} is an apocalyptic number.

It is an amenable number.

1413401309981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1413401309981 is an equidigital number, since it uses as much as digits as its factorization.

1413401309981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 1413401309981 in words is "one trillion, four hundred thirteen billion, four hundred one million, three hundred nine thousand, nine hundred eighty-one".