2013155 has 4 divisors (see below), whose sum is σ = 2415792. Its totient is φ = 1610520.

The previous prime is 2013127. The next prime is 2013163. The reversal of 2013155 is 5513102.

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

It is not a de Polignac number, because 2013155 - 2¹⁶ = 1947619 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, 201311 + ... + 201320.

It is an arithmetic number, because the mean of its divisors is an integer number (603948).

2^2013155 is an apocalyptic number.

2013155 is a deficient number, since it is larger than the sum of its proper divisors (402637).

2013155 is an equidigital number, since it uses as much as digits as its factorization.

2013155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402636.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2013155 is about 1418.8569342961. The cubic root of 2013155 is about 126.2677392320.

Adding to 2013155 its reverse (5513102), we get a palindrome (7526257).

The spelling of 2013155 in words is "two million, thirteen thousand, one hundred fifty-five".