2155003143 has 16 divisors (see below), whose sum is σ = 2962083840. Its totient is φ = 1392963264.

The previous prime is 2155003133. The next prime is 2155003163. The reversal of 2155003143 is 3413005512.

It is not a de Polignac number, because 2155003143 - 2¹³ = 2154994951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155003133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70471 + ... + 96312.

It is an arithmetic number, because the mean of its divisors is an integer number (185130240).

Almost surely, 2^2155003143 is an apocalyptic number.

2155003143 is a deficient number, since it is larger than the sum of its proper divisors (807080697).

2155003143 is a wasteful number, since it uses less digits than its factorization.

2155003143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166918.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2155003143 is about 46422.0114062284. The cubic root of 2155003143 is about 1291.6632478929.

Adding to 2155003143 its reverse (3413005512), we get a palindrome (5568008655).

The spelling of 2155003143 in words is "two billion, one hundred fifty-five million, three thousand, one hundred forty-three".