1166903 has 2 divisors, whose sum is σ = 1166904. Its totient is φ = 1166902.

The previous prime is 1166861. The next prime is 1166927. The reversal of 1166903 is 3096611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1166903 - 2⁶ = 1166839 is a prime.

It is a super-2 number, since 2×1166903² = 2723325222818, which contains 22 as substring.

It is equal to p₉₀₅₄₈ and since 1166903 and 90548 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583451 + 583452.

It is an arithmetic number, because the mean of its divisors is an integer number (583452).

2^1166903 is an apocalyptic number.

1166903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166903 is an equidigital number, since it uses as much as digits as its factorization.

1166903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1166903 is about 1080.2328452699. The cubic root of 1166903 is about 105.2797678920.

The spelling of 1166903 in words is "one million, one hundred sixty-six thousand, nine hundred three".