4155232231 has 4 divisors (see below), whose sum is σ = 4155393600. Its totient is φ = 4155070864.

The previous prime is 4155232229. The next prime is 4155232243. The reversal of 4155232231 is 1322325514.

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 4155232231 - 2¹ = 4155232229 is a prime.

It is a super-2 number, since 2×4155232231² = 34531909787082474722, 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 4155232231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155232931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32446 + ... + 96763.

It is an arithmetic number, because the mean of its divisors is an integer number (1038848400).

Almost surely, 2^4155232231 is an apocalyptic number.

4155232231 is a deficient number, since it is larger than the sum of its proper divisors (161369).

4155232231 is a wasteful number, since it uses less digits than its factorization.

4155232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161368.

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

The square root of 4155232231 is about 64461.0908300503. The cubic root of 4155232231 is about 1607.6756489541.

Adding to 4155232231 its reverse (1322325514), we get a palindrome (5477557745).

The spelling of 4155232231 in words is "four billion, one hundred fifty-five million, two hundred thirty-two thousand, two hundred thirty-one".