2144457 has 12 divisors (see below), whose sum is σ = 3540160. Its totient is φ = 1225368.

The previous prime is 2144449. The next prime is 2144459. The reversal of 2144457 is 7544412.

2144457 is a `hidden beast` number, since 214 + 445 + 7 = 666.

It is not a de Polignac number, because 2144457 - 2³ = 2144449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144457.

It is not an unprimeable number, because it can be changed into a prime (2144459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16957 + ... + 17082.

2^2144457 is an apocalyptic number.

It is an amenable number.

2144457 is a deficient number, since it is larger than the sum of its proper divisors (1395703).

2144457 is a wasteful number, since it uses less digits than its factorization.

2144457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34052 (or 34049 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 2144457 is about 1464.3964627108. The cubic root of 2144457 is about 128.9552756442.

Adding to 2144457 its reverse (7544412), we get a palindrome (9688869).

It can be divided in two parts, 2144 and 457, that added together give a square (2601 = 51²).

The spelling of 2144457 in words is "two million, one hundred forty-four thousand, four hundred fifty-seven".