4140661 has 4 divisors (see below), whose sum is σ = 4732192. Its totient is φ = 3549132.

The previous prime is 4140641. The next prime is 4140683. The reversal of 4140661 is 1660414.

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 4140661 - 2⁵ = 4140629 is a prime.

It is a Duffinian number.

4140661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140611) 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, 295755 + ... + 295768.

It is an arithmetic number, because the mean of its divisors is an integer number (1183048).

Almost surely, 2^4140661 is an apocalyptic number.

It is an amenable number.

4140661 is a deficient number, since it is larger than the sum of its proper divisors (591531).

4140661 is an equidigital number, since it uses as much as digits as its factorization.

4140661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591530.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4140661 is about 2034.8614203429. The cubic root of 4140661 is about 160.5794225887.

The spelling of 4140661 in words is "four million, one hundred forty thousand, six hundred sixty-one".