228107245 has 4 divisors (see below), whose sum is σ = 273728700. Its totient is φ = 182485792.

The previous prime is 228107219. The next prime is 228107249. The reversal of 228107245 is 542701822.

It is a happy number.

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 41757444 + 186349801 = 6462^2 + 13651^2 .

It is a cyclic number.

It is not a de Polignac number, because 228107245 - 2⁵ = 228107213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228107249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22810720 + ... + 22810729.

It is an arithmetic number, because the mean of its divisors is an integer number (68432175).

Almost surely, 2^228107245 is an apocalyptic number.

It is an amenable number.

228107245 is a deficient number, since it is larger than the sum of its proper divisors (45621455).

228107245 is an equidigital number, since it uses as much as digits as its factorization.

228107245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45621454.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 228107245 is about 15103.2196898542. The cubic root of 228107245 is about 611.0072447963.

The spelling of 228107245 in words is "two hundred twenty-eight million, one hundred seven thousand, two hundred forty-five".