2156027 has 4 divisors (see below), whose sum is σ = 2214336. Its totient is φ = 2097720.

The previous prime is 2156023. The next prime is 2156039. The reversal of 2156027 is 7206512.

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 2156027 - 2² = 2156023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155993 and 2156011.

It is not an unprimeable number, because it can be changed into a prime (2156023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29099 + ... + 29172.

It is an arithmetic number, because the mean of its divisors is an integer number (553584).

2^2156027 is an apocalyptic number.

2156027 is a deficient number, since it is larger than the sum of its proper divisors (58309).

2156027 is an equidigital number, since it uses as much as digits as its factorization.

2156027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58308.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2156027 is about 1468.3415815130. The cubic root of 2156027 is about 129.1867774907.

The spelling of 2156027 in words is "two million, one hundred fifty-six thousand, twenty-seven".