2131055 has 4 divisors (see below), whose sum is σ = 2557272. Its totient is φ = 1704840.

The previous prime is 2131049. The next prime is 2131081. The reversal of 2131055 is 5501312.

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

It is not a de Polignac number, because 2131055 - 2⁴ = 2131039 is a prime.

It is a Duffinian number.

It is a congruent 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, 213101 + ... + 213110.

It is an arithmetic number, because the mean of its divisors is an integer number (639318).

2^2131055 is an apocalyptic number.

2131055 is a deficient number, since it is larger than the sum of its proper divisors (426217).

2131055 is an equidigital number, since it uses as much as digits as its factorization.

2131055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426216.

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

The square root of 2131055 is about 1459.8133442327. The cubic root of 2131055 is about 128.6860744019.

Adding to 2131055 its reverse (5501312), we get a palindrome (7632367).

The spelling of 2131055 in words is "two million, one hundred thirty-one thousand, fifty-five".