1124666681 has 2 divisors, whose sum is σ = 1124666682. Its totient is φ = 1124666680.

The previous prime is 1124666663. The next prime is 1124666707. The reversal of 1124666681 is 1866664211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 747530281 + 377136400 = 27341^2 + 19420^2 .

It is an emirp because it is prime and its reverse (1866664211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1124666681 - 2⁶ = 1124666617 is a prime.

It is a super-2 number, since 2×1124666681² = 2529750286703111522, 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 (1124666651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562333340 + 562333341.

It is an arithmetic number, because the mean of its divisors is an integer number (562333341).

Almost surely, 2^1124666681 is an apocalyptic number.

It is an amenable number.

1124666681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124666681 is an equidigital number, since it uses as much as digits as its factorization.

1124666681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 1124666681 is about 33536.0504681157. The cubic root of 1124666681 is about 1039.9391856081.

The spelling of 1124666681 in words is "one billion, one hundred twenty-four million, six hundred sixty-six thousand, six hundred eighty-one".