6011645 has 4 divisors (see below), whose sum is σ = 7213980. Its totient is φ = 4809312.

The previous prime is 6011639. The next prime is 6011647. The reversal of 6011645 is 5461106.

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 872356 + 5139289 = 934^2 + 2267^2 .

It is a cyclic number.

It is not a de Polignac number, because 6011645 - 2¹⁸ = 5749501 is a prime.

It is a super-2 number, since 2×6011645² = 72279751212050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6011645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6011647) 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, 601160 + ... + 601169.

It is an arithmetic number, because the mean of its divisors is an integer number (1803495).

Almost surely, 2^6011645 is an apocalyptic number.

It is an amenable number.

6011645 is a deficient number, since it is larger than the sum of its proper divisors (1202335).

6011645 is a wasteful number, since it uses less digits than its factorization.

6011645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202334.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 6011645 is about 2451.8656162196. The cubic root of 6011645 is about 181.8295409191.

The spelling of 6011645 in words is "six million, eleven thousand, six hundred forty-five".