2361521 has 8 divisors (see below), whose sum is σ = 2548584. Its totient is φ = 2179840.

The previous prime is 2361509. The next prime is 2361539. The reversal of 2361521 is 1251632.

It can be written as a sum of positive squares in 4 ways, for example, as 1288225 + 1073296 = 1135^2 + 1036^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2361521 - 2¹⁰ = 2360497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2361493 and 2361502.

It is not an unprimeable number, because it can be changed into a prime (2361581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (318573).

2^2361521 is an apocalyptic number.

It is an amenable number.

2361521 is a deficient number, since it is larger than the sum of its proper divisors (187063).

2361521 is a wasteful number, since it uses less digits than its factorization.

2361521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691.

The product of its digits is 360, while the sum is 20.

The square root of 2361521 is about 1536.7241131706. The cubic root of 2361521 is about 133.1672007245.

It can be divided in two parts, 2361 and 521, that added together give a palindrome (2882).

The spelling of 2361521 in words is "two million, three hundred sixty-one thousand, five hundred twenty-one".