2043155 has 4 divisors (see below), whose sum is σ = 2451792. Its totient is φ = 1634520.

The previous prime is 2043149. The next prime is 2043163. The reversal of 2043155 is 5513402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2043155 - 2⁶ = 2043091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204311 + ... + 204320.

It is an arithmetic number, because the mean of its divisors is an integer number (612948).

2^2043155 is an apocalyptic number.

2043155 is a deficient number, since it is larger than the sum of its proper divisors (408637).

2043155 is an equidigital number, since it uses as much as digits as its factorization.

2043155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408636.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2043155 is about 1429.3897299197. The cubic root of 2043155 is about 126.8918624000.

Adding to 2043155 its reverse (5513402), we get a palindrome (7556557).

The spelling of 2043155 in words is "two million, forty-three thousand, one hundred fifty-five".