1215412 has 24 divisors (see below), whose sum is σ = 2423232. Its totient is φ = 528000.

The previous prime is 1215407. The next prime is 1215421. The reversal of 1215412 is 2145121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412 + ... + 1612.

It is an arithmetic number, because the mean of its divisors is an integer number (100968).

2^1215412 is an apocalyptic number.

It is an amenable number.

1215412 is a deficient number, since it is larger than the sum of its proper divisors (1207820).

1215412 is a wasteful number, since it uses less digits than its factorization.

1215412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1237 counting only the distinct ones).

The product of its digits is 80, while the sum is 16.

The square root of 1215412 is about 1102.4572554072. The cubic root of 1215412 is about 106.7188590066.

The spelling of 1215412 in words is "one million, two hundred fifteen thousand, four hundred twelve".