1083307661 has 2 divisors, whose sum is σ = 1083307662. Its totient is φ = 1083307660.

The previous prime is 1083307627. The next prime is 1083307681. The reversal of 1083307661 is 1667033801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1036453636 + 46854025 = 32194^2 + 6845^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083307661 - 2¹⁸ = 1083045517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1083307681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541653830 + 541653831.

It is an arithmetic number, because the mean of its divisors is an integer number (541653831).

Almost surely, 2^1083307661 is an apocalyptic number.

It is an amenable number.

1083307661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1083307661 is an equidigital number, since it uses as much as digits as its factorization.

1083307661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1083307661 is about 32913.6394371695. The cubic root of 1083307661 is about 1027.0319117873.

The spelling of 1083307661 in words is "one billion, eighty-three million, three hundred seven thousand, six hundred sixty-one".