228858125 has 10 divisors (see below), whose sum is σ = 285981894. Its totient is φ = 183086000.

The previous prime is 228858121. The next prime is 228858137. The reversal of 228858125 is 521858822.

It can be written as a sum of positive squares in 5 ways, for example, as 108451396 + 120406729 = 10414^2 + 10973^2 .

It is not a de Polignac number, because 228858125 - 2² = 228858121 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 (228858121) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 182462 + ... + 183711.

Almost surely, 2^228858125 is an apocalyptic number.

228858125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228858125 is a deficient number, since it is larger than the sum of its proper divisors (57123769).

228858125 is an frugal number, since it uses more digits than its factorization.

228858125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366193 (or 366178 counting only the distinct ones).

The product of its digits is 102400, while the sum is 41.

The square root of 228858125 is about 15128.0575421962. The cubic root of 228858125 is about 611.6769453173.

The spelling of 228858125 in words is "two hundred twenty-eight million, eight hundred fifty-eight thousand, one hundred twenty-five".