1141627681 has 2 divisors, whose sum is σ = 1141627682. Its totient is φ = 1141627680.

The previous prime is 1141627679. The next prime is 1141627703. The reversal of 1141627681 is 1867261411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058526225 + 83101456 = 32535^2 + 9116^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141627681 - 2¹ = 1141627679 is a prime.

It is a super-2 number, since 2×1141627681² = 2606627524050875522, which contains 22 as substring.

Together with 1141627679, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1141627681.

It is not a weakly prime, because it can be changed into another prime (1141627621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570813840 + 570813841.

It is an arithmetic number, because the mean of its divisors is an integer number (570813841).

Almost surely, 2^1141627681 is an apocalyptic number.

It is an amenable number.

1141627681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141627681 is an equidigital number, since it uses as much as digits as its factorization.

1141627681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The square root of 1141627681 is about 33787.9813099274. The cubic root of 1141627681 is about 1045.1408678944.

The spelling of 1141627681 in words is "one billion, one hundred forty-one million, six hundred twenty-seven thousand, six hundred eighty-one".