2150155 has 16 divisors (see below), whose sum is σ = 3078144. Its totient is φ = 1409760.

The previous prime is 2150149. The next prime is 2150171. The reversal of 2150155 is 5510512.

It is not a de Polignac number, because 2150155 - 2¹⁹ = 1625867 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (192384).

2^2150155 is an apocalyptic number.

2150155 is a deficient number, since it is larger than the sum of its proper divisors (927989).

2150155 is a wasteful number, since it uses less digits than its factorization.

2150155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 2150155 is about 1466.3406834703. The cubic root of 2150155 is about 129.0693895858.

Adding to 2150155 its reverse (5510512), we get a palindrome (7660667).

It can be divided in two parts, 21 and 50155, that added together give a square (50176 = 224²).

The spelling of 2150155 in words is "two million, one hundred fifty thousand, one hundred fifty-five".