1215232 has 36 divisors (see below), whose sum is σ = 2501856. Its totient is φ = 588800.

The previous prime is 1215229. The next prime is 1215239. The reversal of 1215232 is 2325121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11982 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (69496).

2^1215232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250928).

1215232 is an abundant number, since it is smaller than the sum of its proper divisors (1286624).

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

1215232 is an equidigital number, since it uses as much as digits as its factorization.

1215232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 150 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 1215232 is about 1102.3756165663. The cubic root of 1215232 is about 106.7135904658.

The spelling of 1215232 in words is "one million, two hundred fifteen thousand, two hundred thirty-two".