1213166 has 8 divisors (see below), whose sum is σ = 1837080. Its totient is φ = 600808.

The previous prime is 1213153. The next prime is 1213183. The reversal of 1213166 is 6613121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2621 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (229635).

2^1213166 is an apocalyptic number.

1213166 is a deficient number, since it is larger than the sum of its proper divisors (623914).

1213166 is a wasteful number, since it uses less digits than its factorization.

1213166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778.

The product of its digits is 216, while the sum is 20.

The square root of 1213166 is about 1101.4381507829. The cubic root of 1213166 is about 106.6530820374.

Adding to 1213166 its reverse (6613121), we get a palindrome (7826287).

The spelling of 1213166 in words is "one million, two hundred thirteen thousand, one hundred sixty-six".