228595537 has 2 divisors, whose sum is σ = 228595538. Its totient is φ = 228595536.

The previous prime is 228595511. The next prime is 228595553. The reversal of 228595537 is 735595822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178596496 + 49999041 = 13364^2 + 7071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228595537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228595567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114297768 + 114297769.

It is an arithmetic number, because the mean of its divisors is an integer number (114297769).

Almost surely, 2^228595537 is an apocalyptic number.

It is an amenable number.

228595537 is a deficient number, since it is larger than the sum of its proper divisors (1).

228595537 is an equidigital number, since it uses as much as digits as its factorization.

228595537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 46.

The square root of 228595537 is about 15119.3762106775. The cubic root of 228595537 is about 611.4429131407.

The spelling of 228595537 in words is "two hundred twenty-eight million, five hundred ninety-five thousand, five hundred thirty-seven".