6012661 has 4 divisors (see below), whose sum is σ = 6021324. Its totient is φ = 6004000.

The previous prime is 6012659. The next prime is 6012673. The reversal of 6012661 is 1662106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1454436 + 4558225 = 1206^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 6012661 - 2¹ = 6012659 is a prime.

It is a Duffinian number.

6012661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6010661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3190 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (1505331).

Almost surely, 2^6012661 is an apocalyptic number.

It is an amenable number.

6012661 is a deficient number, since it is larger than the sum of its proper divisors (8663).

6012661 is an equidigital number, since it uses as much as digits as its factorization.

6012661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8662.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6012661 is about 2452.0727966355. The cubic root of 6012661 is about 181.8397837288.

Adding to 6012661 its reverse (1662106), we get a palindrome (7674767).

It can be divided in two parts, 60 and 12661, that added together give a palindrome (12721).

The spelling of 6012661 in words is "six million, twelve thousand, six hundred sixty-one".