228162515 has 16 divisors (see below), whose sum is σ = 320187648. Its totient is φ = 152814816.

The previous prime is 228162439. The next prime is 228162521. The reversal of 228162515 is 515261822.

It is not a de Polignac number, because 228162515 - 2¹⁰ = 228161491 is a prime.

It is a super-2 number, since 2×228162515² = 104116266502250450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74297 + ... + 77306.

It is an arithmetic number, because the mean of its divisors is an integer number (20011728).

Almost surely, 2^228162515 is an apocalyptic number.

228162515 is a deficient number, since it is larger than the sum of its proper divisors (92025133).

228162515 is a wasteful number, since it uses less digits than its factorization.

228162515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151658.

The product of its digits is 9600, while the sum is 32.

The square root of 228162515 is about 15105.0493213362. The cubic root of 228162515 is about 611.0565894854.

The spelling of 228162515 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, five hundred fifteen".