6768145 has 4 divisors (see below), whose sum is σ = 8121780. Its totient is φ = 5414512.

The previous prime is 6768131. The next prime is 6768149. The reversal of 6768145 is 5418676.

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 3932289 + 2835856 = 1983^2 + 1684^2 .

It is a cyclic number.

It is not a de Polignac number, because 6768145 - 2¹⁷ = 6637073 is a prime.

It is a super-4 number, since 4×6768145⁴ (a number of 28 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (6768149) 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, 676810 + ... + 676819.

It is an arithmetic number, because the mean of its divisors is an integer number (2030445).

Almost surely, 2^6768145 is an apocalyptic number.

It is an amenable number.

6768145 is a deficient number, since it is larger than the sum of its proper divisors (1353635).

6768145 is a wasteful number, since it uses less digits than its factorization.

6768145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353634.

The product of its digits is 40320, while the sum is 37.

The square root of 6768145 is about 2601.5658746224. The cubic root of 6768145 is about 189.1573486928.

The spelling of 6768145 in words is "six million, seven hundred sixty-eight thousand, one hundred forty-five".