228146637 has 8 divisors (see below), whose sum is σ = 317421504. Its totient is φ = 145484768.

The previous prime is 228146629. The next prime is 228146657. The reversal of 228146637 is 736641822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228146637 - 2³ = 228146629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228146595 and 228146604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228146657) 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 7 ways as a sum of consecutive naturals, for example, 1653168 + ... + 1653305.

It is an arithmetic number, because the mean of its divisors is an integer number (39677688).

Almost surely, 2^228146637 is an apocalyptic number.

It is an amenable number.

228146637 is a deficient number, since it is larger than the sum of its proper divisors (89274867).

228146637 is a wasteful number, since it uses less digits than its factorization.

228146637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306499.

The product of its digits is 96768, while the sum is 39.

The square root of 228146637 is about 15104.5237263543. The cubic root of 228146637 is about 611.0424145283.

The spelling of 228146637 in words is "two hundred twenty-eight million, one hundred forty-six thousand, six hundred thirty-seven".