2321541 has 10 divisors (see below), whose sum is σ = 3468102. Its totient is φ = 1547640.

The previous prime is 2321531. The next prime is 2321563. The reversal of 2321541 is 1451232.

It can be written as a sum of positive squares in only one way, i.e., 2313441 + 8100 = 1521^2 + 90^2 .

It is not a de Polignac number, because 2321541 - 2⁵ = 2321509 is a prime.

It is a super-2 number, since 2×2321541² = 10779105229362, which contains 22 as substring.

2321541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321531) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14250 + ... + 14411.

2^2321541 is an apocalyptic number.

It is an amenable number.

2321541 is a deficient number, since it is larger than the sum of its proper divisors (1146561).

2321541 is an equidigital number, since it uses as much as digits as its factorization.

2321541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28673 (or 28664 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2321541 is about 1523.6603952325. The cubic root of 2321541 is about 132.4114229396.

Adding to 2321541 its reverse (1451232), we get a palindrome (3772773).

The spelling of 2321541 in words is "two million, three hundred twenty-one thousand, five hundred forty-one".