2153524231 has 4 divisors (see below), whose sum is σ = 2157461752. Its totient is φ = 2149586712.

The previous prime is 2153524207. The next prime is 2153524291. The reversal of 2153524231 is 1324253512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153524231 - 2⁵ = 2153524199 is a prime.

It is a super-2 number, since 2×2153524231² = 9275333227008282722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153524231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153524291) 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 3 ways as a sum of consecutive naturals, for example, 1967940 + ... + 1969033.

It is an arithmetic number, because the mean of its divisors is an integer number (539365438).

Almost surely, 2^2153524231 is an apocalyptic number.

2153524231 is a deficient number, since it is larger than the sum of its proper divisors (3937521).

2153524231 is an equidigital number, since it uses as much as digits as its factorization.

2153524231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937520.

The product of its digits is 7200, while the sum is 28.

The square root of 2153524231 is about 46406.0796771285. The cubic root of 2153524231 is about 1291.3677040970.

Adding to 2153524231 its reverse (1324253512), we get a palindrome (3477777743).

The spelling of 2153524231 in words is "two billion, one hundred fifty-three million, five hundred twenty-four thousand, two hundred thirty-one".