2241891481 has 2 divisors, whose sum is σ = 2241891482. Its totient is φ = 2241891480.

The previous prime is 2241891437. The next prime is 2241891497. The reversal of 2241891481 is 1841981422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2075713600 + 166177881 = 45560^2 + 12891^2 .

It is a cyclic number.

It is not a de Polignac number, because 2241891481 - 2⁹ = 2241890969 is a prime.

It is a super-2 number, since 2×2241891481² = 10052154825160746722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2241891781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120945740 + 1120945741.

It is an arithmetic number, because the mean of its divisors is an integer number (1120945741).

Almost surely, 2^2241891481 is an apocalyptic number.

It is an amenable number.

2241891481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2241891481 is an equidigital number, since it uses as much as digits as its factorization.

2241891481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The square root of 2241891481 is about 47348.6164634195. The cubic root of 2241891481 is about 1308.7947037832.

The spelling of 2241891481 in words is "two billion, two hundred forty-one million, eight hundred ninety-one thousand, four hundred eighty-one".