2443155 has 64 divisors (see below), whose sum is σ = 4935168. Its totient is φ = 1013760.

The previous prime is 2443151. The next prime is 2443159. The reversal of 2443155 is 5513442.

2443155 = T₁₂₀ + T₁₂₁ + ... + T₂₅₃.

2443155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2443155 is a nontrivial binomial coefficient, being equal to C(2211, 2).

It is an interprime number because it is at equal distance from previous prime (2443151) and next prime (2443159).

It is not a de Polignac number, because 2443155 - 2² = 2443151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36432 + ... + 36498.

It is an arithmetic number, because the mean of its divisors is an integer number (77112).

2^2443155 is an apocalyptic number.

2443155 is the 2210-th triangular number.

2443155 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

2443155 is a wasteful number, since it uses less digits than its factorization.

2443155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116.

The product of its digits is 2400, while the sum is 24.

The square root of 2443155 is about 1563.0594998272. The cubic root of 2443155 is about 134.6843103646.

Adding to 2443155 its reverse (5513442), we get a palindrome (7956597).

The spelling of 2443155 in words is "two million, four hundred forty-three thousand, one hundred fifty-five".