1143760481 has 2 divisors, whose sum is σ = 1143760482. Its totient is φ = 1143760480.

The previous prime is 1143760451. The next prime is 1143760487. The reversal of 1143760481 is 1840673411.

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., 979690000 + 164070481 = 31300^2 + 12809^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143760481 - 2¹⁰ = 1143759457 is a prime.

It is a super-2 number, since 2×1143760481² = 2616376075794702722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1143760487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571880240 + 571880241.

It is an arithmetic number, because the mean of its divisors is an integer number (571880241).

Almost surely, 2^1143760481 is an apocalyptic number.

It is an amenable number.

1143760481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143760481 is an equidigital number, since it uses as much as digits as its factorization.

1143760481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1143760481 is about 33819.5281013795. The cubic root of 1143760481 is about 1045.7913104720.

The spelling of 1143760481 in words is "one billion, one hundred forty-three million, seven hundred sixty thousand, four hundred eighty-one".