2155254143 has 8 divisors (see below), whose sum is σ = 2463606912. Its totient is φ = 1847016216.

The previous prime is 2155254139. The next prime is 2155254149. The reversal of 2155254143 is 3414525512.

2155254143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2155254143 - 2² = 2155254139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155254149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16196 + ... + 67622.

It is an arithmetic number, because the mean of its divisors is an integer number (307950864).

Almost surely, 2^2155254143 is an apocalyptic number.

2155254143 is a deficient number, since it is larger than the sum of its proper divisors (308352769).

2155254143 is an equidigital number, since it uses as much as digits as its factorization.

2155254143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57421.

The product of its digits is 24000, while the sum is 32.

The square root of 2155254143 is about 46424.7147864152. The cubic root of 2155254143 is about 1291.7133939743.

Adding to 2155254143 its reverse (3414525512), we get a palindrome (5569779655).

The spelling of 2155254143 in words is "two billion, one hundred fifty-five million, two hundred fifty-four thousand, one hundred forty-three".