2200155 has 8 divisors (see below), whose sum is σ = 3520272. Its totient is φ = 1173408.

The previous prime is 2200153. The next prime is 2200193. The reversal of 2200155 is 5510022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2200155 - 2¹ = 2200153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 146677 = 2200155 / (2 + 2 + 0 + 0 + 1 + 5 + 5).

It is not an unprimeable number, because it can be changed into a prime (2200153) 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, 73324 + ... + 73353.

It is an arithmetic number, because the mean of its divisors is an integer number (440034).

2^2200155 is an apocalyptic number.

2200155 is a deficient number, since it is larger than the sum of its proper divisors (1320117).

2200155 is a wasteful number, since it uses less digits than its factorization.

2200155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146685.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 2200155 is about 1483.2919469882. The cubic root of 2200155 is about 130.0621990327.

Adding to 2200155 its reverse (5510022), we get a palindrome (7710177).

The spelling of 2200155 in words is "two million, two hundred thousand, one hundred fifty-five".