1247166 has 24 divisors (see below), whose sum is σ = 2723760. Its totient is φ = 412416.

The previous prime is 1247119. The next prime is 1247167. The reversal of 1247166 is 6617421.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247167) 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, 3295 + ... + 3653.

It is an arithmetic number, because the mean of its divisors is an integer number (113490).

2^1247166 is an apocalyptic number.

1247166 is an abundant number, since it is smaller than the sum of its proper divisors (1476594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247166 is a wasteful number, since it uses less digits than its factorization.

1247166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 557 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1247166 is about 1116.7658662405. The cubic root of 1247166 is about 107.6402639951.

The spelling of 1247166 in words is "one million, two hundred forty-seven thousand, one hundred sixty-six".