2127145 has 8 divisors (see below), whose sum is σ = 2687040. Its totient is φ = 1612080.

The previous prime is 2127143. The next prime is 2127149. The reversal of 2127145 is 5417212.

It is a happy number.

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

It is not a de Polignac number, because 2127145 - 2¹ = 2127143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2127143) 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, 11101 + ... + 11290.

It is an arithmetic number, because the mean of its divisors is an integer number (335880).

2^2127145 is an apocalyptic number.

It is an amenable number.

2127145 is a deficient number, since it is larger than the sum of its proper divisors (559895).

2127145 is a wasteful number, since it uses less digits than its factorization.

2127145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22415.

The product of its digits is 560, while the sum is 22.

The square root of 2127145 is about 1458.4735170719. The cubic root of 2127145 is about 128.6073230175.

It can be divided in two parts, 21271 and 45, that added together give a square (21316 = 146²).

The spelling of 2127145 in words is "two million, one hundred twenty-seven thousand, one hundred forty-five".