1403419981 has 2 divisors, whose sum is σ = 1403419982. Its totient is φ = 1403419980.

The previous prime is 1403419973. The next prime is 1403419999. The reversal of 1403419981 is 1899143041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 896044356 + 507375625 = 29934^2 + 22525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403419981 - 2³ = 1403419973 is a prime.

It is a super-2 number, since 2×1403419981² = 3939175286140080722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403419931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701709990 + 701709991.

It is an arithmetic number, because the mean of its divisors is an integer number (701709991).

Almost surely, 2^1403419981 is an apocalyptic number.

It is an amenable number.

1403419981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403419981 is an equidigital number, since it uses as much as digits as its factorization.

1403419981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1403419981 is about 37462.2474098925. The cubic root of 1403419981 is about 1119.5991286989.

The spelling of 1403419981 in words is "one billion, four hundred three million, four hundred nineteen thousand, nine hundred eighty-one".