1166045239 has 2 divisors, whose sum is σ = 1166045240. Its totient is φ = 1166045238.

The previous prime is 1166045227. The next prime is 1166045281. The reversal of 1166045239 is 9325406611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1166045239 - 2¹¹ = 1166043191 is a prime.

It is a super-2 number, since 2×1166045239² = 2719322998789134242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166045198 and 1166045207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166045339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583022619 + 583022620.

It is an arithmetic number, because the mean of its divisors is an integer number (583022620).

Almost surely, 2^1166045239 is an apocalyptic number.

1166045239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166045239 is an equidigital number, since it uses as much as digits as its factorization.

1166045239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1166045239 is about 34147.4045719437. The cubic root of 1166045239 is about 1052.5396540033.

The spelling of 1166045239 in words is "one billion, one hundred sixty-six million, forty-five thousand, two hundred thirty-nine".