228125493 has 6 divisors (see below), whose sum is σ = 329514614. Its totient is φ = 152083656.

The previous prime is 228125479. The next prime is 228125501. The reversal of 228125493 is 394521822.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 176544369 + 51581124 = 13287^2 + 7182^2 .

It is not a de Polignac number, because 228125493 - 2⁸ = 228125237 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 (228125453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12673630 + ... + 12673647.

Almost surely, 2^228125493 is an apocalyptic number.

It is an amenable number.

228125493 is a deficient number, since it is larger than the sum of its proper divisors (101389121).

228125493 is a wasteful number, since it uses less digits than its factorization.

228125493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25347283 (or 25347280 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 228125493 is about 15103.8237873725. The cubic root of 228125493 is about 611.0235373709.

The spelling of 228125493 in words is "two hundred twenty-eight million, one hundred twenty-five thousand, four hundred ninety-three".