1166139 has 12 divisors (see below), whose sum is σ = 1814176. Its totient is φ = 717552.

The previous prime is 1166131. The next prime is 1166141. The reversal of 1166139 is 9316611.

It is not a de Polignac number, because 1166139 - 2³ = 1166131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166131) 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, 4867 + ... + 5100.

2^1166139 is an apocalyptic number.

1166139 is a deficient number, since it is larger than the sum of its proper divisors (648037).

1166139 is a wasteful number, since it uses less digits than its factorization.

1166139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9986 (or 9983 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1166139 is about 1079.8791599063. The cubic root of 1166139 is about 105.2567864608.

The spelling of 1166139 in words is "one million, one hundred sixty-six thousand, one hundred thirty-nine".