2231155543 has 8 divisors (see below), whose sum is σ = 2265242112. Its totient is φ = 2197092216.

The previous prime is 2231155517. The next prime is 2231155583. The reversal of 2231155543 is 3455511322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231155543 is a prime.

It is a super-3 number, since 3×2231155543³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231155583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365946 + ... + 371992.

It is an arithmetic number, because the mean of its divisors is an integer number (283155264).

Almost surely, 2^2231155543 is an apocalyptic number.

2231155543 is a deficient number, since it is larger than the sum of its proper divisors (34086569).

2231155543 is an equidigital number, since it uses as much as digits as its factorization.

2231155543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621.

The product of its digits is 18000, while the sum is 31.

The square root of 2231155543 is about 47235.1092197319. The cubic root of 2231155543 is about 1306.7021808586.

Adding to 2231155543 its reverse (3455511322), we get a palindrome (5686666865).

The spelling of 2231155543 in words is "two billion, two hundred thirty-one million, one hundred fifty-five thousand, five hundred forty-three".