228053237 has 4 divisors (see below), whose sum is σ = 234216876. Its totient is φ = 221889600.

The previous prime is 228053213. The next prime is 228053251. The reversal of 228053237 is 732350822.

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 77598481 + 150454756 = 8809^2 + 12266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228053237 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 (228053437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3081764 + ... + 3081837.

It is an arithmetic number, because the mean of its divisors is an integer number (58554219).

Almost surely, 2^228053237 is an apocalyptic number.

It is an amenable number.

228053237 is a deficient number, since it is larger than the sum of its proper divisors (6163639).

228053237 is an equidigital number, since it uses as much as digits as its factorization.

228053237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163638.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 228053237 is about 15101.4316208762. The cubic root of 228053237 is about 610.9590191119.

The spelling of 228053237 in words is "two hundred twenty-eight million, fifty-three thousand, two hundred thirty-seven".