254143155 has 24 divisors (see below), whose sum is σ = 473018832. Its totient is φ = 116179392.

The previous prime is 254143111. The next prime is 254143157. The reversal of 254143155 is 551341452.

It is not a de Polignac number, because 254143155 - 2⁶ = 254143091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254143157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172152 + ... + 173621.

It is an arithmetic number, because the mean of its divisors is an integer number (19709118).

Almost surely, 2^254143155 is an apocalyptic number.

254143155 is a deficient number, since it is larger than the sum of its proper divisors (218875677).

254143155 is a wasteful number, since it uses less digits than its factorization.

254143155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345795 (or 345788 counting only the distinct ones).

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

The square root of 254143155 is about 15941.8679896680. The cubic root of 254143155 is about 633.4215077297.

The spelling of 254143155 in words is "two hundred fifty-four million, one hundred forty-three thousand, one hundred fifty-five".