254155143 has 16 divisors (see below), whose sum is σ = 381606912. Its totient is φ = 149064000.

The previous prime is 254155141. The next prime is 254155147. The reversal of 254155143 is 341551452.

254155143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 254155143 - 2¹ = 254155141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254155143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254155141) 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, 123198 + ... + 125243.

It is an arithmetic number, because the mean of its divisors is an integer number (23850432).

Almost surely, 2^254155143 is an apocalyptic number.

254155143 is a deficient number, since it is larger than the sum of its proper divisors (127451769).

254155143 is a wasteful number, since it uses less digits than its factorization.

254155143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248486.

The product of its digits is 12000, while the sum is 30.

The square root of 254155143 is about 15942.2439763040. The cubic root of 254155143 is about 633.4314671266.

It can be divided in two parts, 2 and 54155143, that added together give a palindrome (54155145).

The spelling of 254155143 in words is "two hundred fifty-four million, one hundred fifty-five thousand, one hundred forty-three".