1212664 has 16 divisors (see below), whose sum is σ = 2352600. Its totient is φ = 585312.

The previous prime is 1212649. The next prime is 1212671. The reversal of 1212664 is 4662121.

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, 2382 + ... + 2845.

2^1212664 is an apocalyptic number.

It is an amenable number.

1212664 is a deficient number, since it is larger than the sum of its proper divisors (1139936).

1212664 is a wasteful number, since it uses less digits than its factorization.

1212664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262 (or 5258 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1212664 is about 1101.2102433232. The cubic root of 1212664 is about 106.6383692298.

Adding to 1212664 its reverse (4662121), we get a palindrome (5874785).

The spelling of 1212664 in words is "one million, two hundred twelve thousand, six hundred sixty-four".