6140557 has 4 divisors (see below), whose sum is σ = 6306556. Its totient is φ = 5974560.

The previous prime is 6140549. The next prime is 6140567. The reversal of 6140557 is 7550416.

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 5692996 + 447561 = 2386^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 6140557 - 2³ = 6140549 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6140567) 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, 82944 + ... + 83017.

It is an arithmetic number, because the mean of its divisors is an integer number (1576639).

Almost surely, 2^6140557 is an apocalyptic number.

It is an amenable number.

6140557 is a deficient number, since it is larger than the sum of its proper divisors (165999).

6140557 is a wasteful number, since it uses less digits than its factorization.

6140557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165998.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 6140557 is about 2478.0147295769. The cubic root of 6140557 is about 183.1200601664.

The spelling of 6140557 in words is "six million, one hundred forty thousand, five hundred fifty-seven".