1166741287 has 2 divisors, whose sum is σ = 1166741288. Its totient is φ = 1166741286.

The previous prime is 1166741281. The next prime is 1166741291. The reversal of 1166741287 is 7821476611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1166741287 - 2¹⁵ = 1166708519 is a prime.

It is a super-2 number, since 2×1166741287² = 2722570461580832738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166741281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583370643 + 583370644.

It is an arithmetic number, because the mean of its divisors is an integer number (583370644).

Almost surely, 2^1166741287 is an apocalyptic number.

1166741287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166741287 is an equidigital number, since it uses as much as digits as its factorization.

1166741287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 43.

The square root of 1166741287 is about 34157.5948655639. The cubic root of 1166741287 is about 1052.7490433623.

The spelling of 1166741287 in words is "one billion, one hundred sixty-six million, seven hundred forty-one thousand, two hundred eighty-seven".