6228157 has 12 divisors (see below), whose sum is σ = 6818580. Its totient is φ = 5685888.

The previous prime is 6228139. The next prime is 6228203. The reversal of 6228157 is 7518226.

It can be written as a sum of positive squares in 6 ways, for example, as 2042041 + 4186116 = 1429^2 + 2046^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6228157 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 (6228457) 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 11 ways as a sum of consecutive naturals, for example, 23019 + ... + 23287.

It is an arithmetic number, because the mean of its divisors is an integer number (568215).

Almost surely, 2^6228157 is an apocalyptic number.

It is an amenable number.

6228157 is a deficient number, since it is larger than the sum of its proper divisors (590423).

6228157 is a wasteful number, since it uses less digits than its factorization.

6228157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 419 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 6228157 is about 2495.6275763823. The cubic root of 6228157 is about 183.9867369930.

The spelling of 6228157 in words is "six million, two hundred twenty-eight thousand, one hundred fifty-seven".