6142505 has 4 divisors (see below), whose sum is σ = 7371012. Its totient is φ = 4914000.

The previous prime is 6142501. The next prime is 6142523. The reversal of 6142505 is 5052416.

6142505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3916441 + 2226064 = 1979^2 + 1492^2 .

It is not a de Polignac number, because 6142505 - 2² = 6142501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6142501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614246 + ... + 614255.

It is an arithmetic number, because the mean of its divisors is an integer number (1842753).

Almost surely, 2^6142505 is an apocalyptic number.

It is an amenable number.

6142505 is a deficient number, since it is larger than the sum of its proper divisors (1228507).

6142505 is a wasteful number, since it uses less digits than its factorization.

6142505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228506.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 6142505 is about 2478.4077549911. The cubic root of 6142505 is about 183.1394221539.

The spelling of 6142505 in words is "six million, one hundred forty-two thousand, five hundred five".