2155828143 has 8 divisors (see below), whose sum is σ = 3285071488. Its totient is φ = 1231901784.

The previous prime is 2155828127. The next prime is 2155828211. The reversal of 2155828143 is 3418285512.

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

It is not a de Polignac number, because 2155828143 - 2⁴ = 2155828127 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 (2155828243) 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, 51329221 + ... + 51329262.

It is an arithmetic number, because the mean of its divisors is an integer number (410633936).

Almost surely, 2^2155828143 is an apocalyptic number.

2155828143 is a deficient number, since it is larger than the sum of its proper divisors (1129243345).

2155828143 is a wasteful number, since it uses less digits than its factorization.

2155828143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102658493.

The product of its digits is 76800, while the sum is 39.

The square root of 2155828143 is about 46430.8964268406. The cubic root of 2155828143 is about 1291.8280560399.

The spelling of 2155828143 in words is "two billion, one hundred fifty-five million, eight hundred twenty-eight thousand, one hundred forty-three".