228536121 has 8 divisors (see below), whose sum is σ = 332416224. Its totient is φ = 138506720.

The previous prime is 228536111. The next prime is 228536131. The reversal of 228536121 is 121635822.

It is an interprime number because it is at equal distance from previous prime (228536111) and next prime (228536131).

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

It is not a de Polignac number, because 228536121 - 2⁵ = 228536089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228536111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3462636 + ... + 3462701.

It is an arithmetic number, because the mean of its divisors is an integer number (41552028).

Almost surely, 2^228536121 is an apocalyptic number.

It is an amenable number.

228536121 is a deficient number, since it is larger than the sum of its proper divisors (103880103).

228536121 is a wasteful number, since it uses less digits than its factorization.

228536121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925351.

The product of its digits is 5760, while the sum is 30.

The square root of 228536121 is about 15117.4111871048. The cubic root of 228536121 is about 611.3899336284.

The spelling of 228536121 in words is "two hundred twenty-eight million, five hundred thirty-six thousand, one hundred twenty-one".