2543155 has 8 divisors (see below), whose sum is σ = 3157200. Its totient is φ = 1964256.

The previous prime is 2543153. The next prime is 2543159. The reversal of 2543155 is 5513452.

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 2543155 - 2¹ = 2543153 is a prime.

2543155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2543153) 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, 8625 + ... + 8914.

It is an arithmetic number, because the mean of its divisors is an integer number (394650).

2^2543155 is an apocalyptic number.

2543155 is a deficient number, since it is larger than the sum of its proper divisors (614045).

2543155 is a wasteful number, since it uses less digits than its factorization.

2543155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17573.

The product of its digits is 3000, while the sum is 25.

The square root of 2543155 is about 1594.7272494066. The cubic root of 2543155 is about 136.4973678642.

The spelling of 2543155 in words is "two million, five hundred forty-three thousand, one hundred fifty-five".