1215452 has 24 divisors (see below), whose sum is σ = 2464896. Its totient is φ = 513648.

The previous prime is 1215451. The next prime is 1215457. The reversal of 1215452 is 2545121.

1215452 is nontrivially palindromic in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063 + ... + 2585.

It is an arithmetic number, because the mean of its divisors is an integer number (102704).

2^1215452 is an apocalyptic number.

It is an amenable number.

1215452 is an abundant number, since it is smaller than the sum of its proper divisors (1249444).

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

1215452 is a wasteful number, since it uses less digits than its factorization.

1215452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 1215452 is about 1102.4753965509. The cubic root of 1215452 is about 106.7200297228.

The spelling of 1215452 in words is "one million, two hundred fifteen thousand, four hundred fifty-two".