228175615 has 12 divisors (see below), whose sum is σ = 290866536. Its totient is φ = 171801728.

The previous prime is 228175613. The next prime is 228175627. The reversal of 228175615 is 516571822.

It is not a de Polignac number, because 228175615 - 2¹ = 228175613 is a prime.

It is a super-2 number, since 2×228175615² = 104128222561256450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228175613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77509 + ... + 80398.

It is an arithmetic number, because the mean of its divisors is an integer number (24238878).

Almost surely, 2^228175615 is an apocalyptic number.

228175615 is a deficient number, since it is larger than the sum of its proper divisors (62690921).

228175615 is a wasteful number, since it uses less digits than its factorization.

228175615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157946 (or 157929 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 228175615 is about 15105.4829449442. The cubic root of 228175615 is about 611.0682839102.

The spelling of 228175615 in words is "two hundred twenty-eight million, one hundred seventy-five thousand, six hundred fifteen".