2144387 has 12 divisors (see below), whose sum is σ = 2523960. Its totient is φ = 1816416.

The previous prime is 2144383. The next prime is 2144399. The reversal of 2144387 is 7834412.

It is not a de Polignac number, because 2144387 - 2² = 2144383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144383) 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, 5039 + ... + 5447.

It is an arithmetic number, because the mean of its divisors is an integer number (210330).

2^2144387 is an apocalyptic number.

2144387 is a deficient number, since it is larger than the sum of its proper divisors (379573).

2144387 is a wasteful number, since it uses less digits than its factorization.

2144387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 523 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 2144387 is about 1464.3725618844. The cubic root of 2144387 is about 128.9538724968.

Adding to 2144387 its reverse (7834412), we get a palindrome (9978799).

The spelling of 2144387 in words is "two million, one hundred forty-four thousand, three hundred eighty-seven".