6481357 has 4 divisors (see below), whose sum is σ = 6486460. Its totient is φ = 6476256.

The previous prime is 6481339. The next prime is 6481367. The reversal of 6481357 is 7531846.

6481357 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4447881 + 2033476 = 2109^2 + 1426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6481357 is a prime.

It is a super-2 number, since 2×6481357² = 84015977122898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481367) 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, 1033 + ... + 3745.

It is an arithmetic number, because the mean of its divisors is an integer number (1621615).

Almost surely, 2^6481357 is an apocalyptic number.

It is an amenable number.

6481357 is a deficient number, since it is larger than the sum of its proper divisors (5103).

6481357 is a wasteful number, since it uses less digits than its factorization.

6481357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102.

The product of its digits is 20160, while the sum is 34.

The square root of 6481357 is about 2545.8509382916. The cubic root of 6481357 is about 186.4469633826.

The spelling of 6481357 in words is "six million, four hundred eighty-one thousand, three hundred fifty-seven".