2126155 has 8 divisors (see below), whose sum is σ = 2593584. Its totient is φ = 1672800.

The previous prime is 2126153. The next prime is 2126167. The reversal of 2126155 is 5516212.

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

It is not a de Polignac number, because 2126155 - 2¹ = 2126153 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126153) 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, 3181 + ... + 3790.

It is an arithmetic number, because the mean of its divisors is an integer number (324198).

2^2126155 is an apocalyptic number.

2126155 is a deficient number, since it is larger than the sum of its proper divisors (467429).

2126155 is an equidigital number, since it uses as much as digits as its factorization.

2126155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037.

The product of its digits is 600, while the sum is 22.

The square root of 2126155 is about 1458.1340816262. The cubic root of 2126155 is about 128.5873681003.

It can be divided in two parts, 21261 and 55, that added together give a square (21316 = 146²).

The spelling of 2126155 in words is "two million, one hundred twenty-six thousand, one hundred fifty-five".