228568137 has 8 divisors (see below), whose sum is σ = 348294336. Its totient is φ = 130610352.

The previous prime is 228568133. The next prime is 228568141. The reversal of 228568137 is 731865822.

It is an interprime number because it is at equal distance from previous prime (228568133) and next prime (228568141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228568137 - 2² = 228568133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228568133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5442078 + ... + 5442119.

It is an arithmetic number, because the mean of its divisors is an integer number (43536792).

Almost surely, 2^228568137 is an apocalyptic number.

It is an amenable number.

228568137 is a deficient number, since it is larger than the sum of its proper divisors (119726199).

228568137 is a wasteful number, since it uses less digits than its factorization.

228568137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10884207.

The product of its digits is 161280, while the sum is 42.

The square root of 228568137 is about 15118.4700614844. The cubic root of 228568137 is about 611.4184825015.

The spelling of 228568137 in words is "two hundred twenty-eight million, five hundred sixty-eight thousand, one hundred thirty-seven".