1213288 has 16 divisors (see below), whose sum is σ = 2328480. Its totient is φ = 592368.

The previous prime is 1213271. The next prime is 1213301. The reversal of 1213288 is 8823121.

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, 1420 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (145530).

2^1213288 is an apocalyptic number.

It is an amenable number.

1213288 is a deficient number, since it is larger than the sum of its proper divisors (1115192).

1213288 is a wasteful number, since it uses less digits than its factorization.

1213288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 3572 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 1213288 is about 1101.4935315289. The cubic root of 1213288 is about 106.6566570468.

The spelling of 1213288 in words is "one million, two hundred thirteen thousand, two hundred eighty-eight".