228526215 has 8 divisors (see below), whose sum is σ = 365641968. Its totient is φ = 121880640.

The previous prime is 228526187. The next prime is 228526231. The reversal of 228526215 is 512625822.

It is a happy number.

228526215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 228526215 - 2¹¹ = 228524167 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7617526 + ... + 7617555.

It is an arithmetic number, because the mean of its divisors is an integer number (45705246).

Almost surely, 2^228526215 is an apocalyptic number.

228526215 is a deficient number, since it is larger than the sum of its proper divisors (137115753).

228526215 is a wasteful number, since it uses less digits than its factorization.

228526215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15235089.

The product of its digits is 19200, while the sum is 33.

The square root of 228526215 is about 15117.0835480922. The cubic root of 228526215 is about 611.3810998444.

The spelling of 228526215 in words is "two hundred twenty-eight million, five hundred twenty-six thousand, two hundred fifteen".