2156127 has 16 divisors (see below), whose sum is σ = 3094272. Its totient is φ = 1330560.

The previous prime is 2156123. The next prime is 2156159. The reversal of 2156127 is 7216512.

It is not a de Polignac number, because 2156127 - 2² = 2156123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2156097 and 2156106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3102 + ... + 3732.

It is an arithmetic number, because the mean of its divisors is an integer number (193392).

2^2156127 is an apocalyptic number.

2156127 is a deficient number, since it is larger than the sum of its proper divisors (938145).

2156127 is a wasteful number, since it uses less digits than its factorization.

2156127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 840, while the sum is 24.

The square root of 2156127 is about 1468.3756331402. The cubic root of 2156127 is about 129.1887747566.

The spelling of 2156127 in words is "two million, one hundred fifty-six thousand, one hundred twenty-seven".