4140249 has 4 divisors (see below), whose sum is σ = 5520336. Its totient is φ = 2760164.

The previous prime is 4140217. The next prime is 4140259. The reversal of 4140249 is 9420414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4140249 - 2⁵ = 4140217 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4140259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690039 + ... + 690044.

It is an arithmetic number, because the mean of its divisors is an integer number (1380084).

Almost surely, 2^4140249 is an apocalyptic number.

It is an amenable number.

4140249 is a deficient number, since it is larger than the sum of its proper divisors (1380087).

4140249 is a wasteful number, since it uses less digits than its factorization.

4140249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380086.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4140249 is about 2034.7601824294. The cubic root of 4140249 is about 160.5740964732.

The spelling of 4140249 in words is "four million, one hundred forty thousand, two hundred forty-nine".