3261155 has 8 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 2597056.

The previous prime is 3261151. The next prime is 3261157. The reversal of 3261155 is 5511623.

3261155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3261155 - 2² = 3261151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3261155.

It is not an unprimeable number, because it can be changed into a prime (3261151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 2559.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^3261155 is an apocalyptic number.

3261155 is a deficient number, since it is larger than the sum of its proper divisors (670045).

3261155 is a wasteful number, since it uses less digits than its factorization.

3261155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its digits is 900, while the sum is 23.

The square root of 3261155 is about 1805.8668278697. The cubic root of 3261155 is about 148.2940798656.

Adding to 3261155 its reverse (5511623), we get a palindrome (8772778).

The spelling of 3261155 in words is "three million, two hundred sixty-one thousand, one hundred fifty-five".