1146810681 has 12 divisors (see below), whose sum is σ = 1657089252. Its totient is φ = 764270496.

The previous prime is 1146810649. The next prime is 1146810733. The reversal of 1146810681 is 1860186411.

1146810681 is a `hidden beast` number, since 11 + 468 + 106 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 812250000 + 334560681 = 28500^2 + 18291^2 .

It is not a de Polignac number, because 1146810681 - 2⁵ = 1146810649 is a prime.

It is a super-2 number, since 2×1146810681² = 2630349476111367522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1146810611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6355 + ... + 48311.

It is an arithmetic number, because the mean of its divisors is an integer number (138090771).

Almost surely, 2^1146810681 is an apocalyptic number.

It is an amenable number.

1146810681 is a deficient number, since it is larger than the sum of its proper divisors (510278571).

1146810681 is a wasteful number, since it uses less digits than its factorization.

1146810681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45000 (or 44997 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1146810681 is about 33864.5933240014. The cubic root of 1146810681 is about 1046.7201300105.

The spelling of 1146810681 in words is "one billion, one hundred forty-six million, eight hundred ten thousand, six hundred eighty-one".