2156119 has 4 divisors (see below), whose sum is σ = 2464144. Its totient is φ = 1848096.

The previous prime is 2156117. The next prime is 2156123. The reversal of 2156119 is 9116512.

2156119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2156119 - 2¹ = 2156117 is a prime.

It is a super-2 number, since 2×2156119² = 9297698284322, which contains 22 as substring.

It is a Duffinian number.

2156119 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2156093 and 2156102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156111) 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 3 ways as a sum of consecutive naturals, for example, 154002 + ... + 154015.

It is an arithmetic number, because the mean of its divisors is an integer number (616036).

2^2156119 is an apocalyptic number.

2156119 is a deficient number, since it is larger than the sum of its proper divisors (308025).

2156119 is an equidigital number, since it uses as much as digits as its factorization.

2156119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308024.

The product of its digits is 540, while the sum is 25.

The square root of 2156119 is about 1468.3729090391. The cubic root of 2156119 is about 129.1886149776.

The spelling of 2156119 in words is "two million, one hundred fifty-six thousand, one hundred nineteen".