6113557 has 4 divisors (see below), whose sum is σ = 6473196. Its totient is φ = 5753920.

The previous prime is 6113539. The next prime is 6113579. The reversal of 6113557 is 7553116.

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 3845521 + 2268036 = 1961^2 + 1506^2 .

It is a cyclic number.

It is not a de Polignac number, because 6113557 - 2¹¹ = 6111509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6113507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179794 + ... + 179827.

It is an arithmetic number, because the mean of its divisors is an integer number (1618299).

Almost surely, 2^6113557 is an apocalyptic number.

It is an amenable number.

6113557 is a deficient number, since it is larger than the sum of its proper divisors (359639).

6113557 is a wasteful number, since it uses less digits than its factorization.

6113557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359638.

The product of its digits is 3150, while the sum is 28.

The square root of 6113557 is about 2472.5608182611. The cubic root of 6113557 is about 182.8512731503.

It can be divided in two parts, 6113 and 557, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 6113557 in words is "six million, one hundred thirteen thousand, five hundred fifty-seven".