2321155 has 8 divisors (see below), whose sum is σ = 2811600. Its totient is φ = 1839456.

The previous prime is 2321153. The next prime is 2321159. The reversal of 2321155 is 5511232.

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

It is a cyclic number.

It is not a de Polignac number, because 2321155 - 2¹ = 2321153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321153) 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, 1585 + ... + 2674.

It is an arithmetic number, because the mean of its divisors is an integer number (351450).

2^2321155 is an apocalyptic number.

2321155 is a deficient number, since it is larger than the sum of its proper divisors (490445).

2321155 is a wasteful number, since it uses less digits than its factorization.

2321155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373.

The product of its digits is 300, while the sum is 19.

The square root of 2321155 is about 1523.5337213203. The cubic root of 2321155 is about 132.4040839003.

Adding to 2321155 its reverse (5511232), we get a palindrome (7832387).

The spelling of 2321155 in words is "two million, three hundred twenty-one thousand, one hundred fifty-five".