1141021481 has 2 divisors, whose sum is σ = 1141021482. Its totient is φ = 1141021480.

The previous prime is 1141021451. The next prime is 1141021499. The reversal of 1141021481 is 1841201411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1135690000 + 5331481 = 33700^2 + 2309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141021481 - 2¹⁴ = 1141005097 is a prime.

It is a super-2 number, since 2×1141021481² = 2603860040206866722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1141021451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570510740 + 570510741.

It is an arithmetic number, because the mean of its divisors is an integer number (570510741).

Almost surely, 2^1141021481 is an apocalyptic number.

It is an amenable number.

1141021481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141021481 is an equidigital number, since it uses as much as digits as its factorization.

1141021481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 1141021481 is about 33779.0094733401. The cubic root of 1141021481 is about 1044.9558465201.

Adding to 1141021481 its reverse (1841201411), we get a palindrome (2982222892).

The spelling of 1141021481 in words is "one billion, one hundred forty-one million, twenty-one thousand, four hundred eighty-one".