2321215 has 24 divisors (see below), whose sum is σ = 3135888. Its totient is φ = 1647360.

The previous prime is 2321213. The next prime is 2321219. The reversal of 2321215 is 5121232.

It is not a de Polignac number, because 2321215 - 2¹ = 2321213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34612 + ... + 34678.

It is an arithmetic number, because the mean of its divisors is an integer number (130662).

2^2321215 is an apocalyptic number.

2321215 is a deficient number, since it is larger than the sum of its proper divisors (814673).

2321215 is a wasteful number, since it uses less digits than its factorization.

2321215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 126 counting only the distinct ones).

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

The square root of 2321215 is about 1523.5534122570. The cubic root of 2321215 is about 132.4052247370.

Adding to 2321215 its reverse (5121232), we get a palindrome (7442447).

The spelling of 2321215 in words is "two million, three hundred twenty-one thousand, two hundred fifteen".