228249515 has 8 divisors (see below), whose sum is σ = 294968688. Its totient is φ = 168553440.

The previous prime is 228249509. The next prime is 228249529. The reversal of 228249515 is 515942822.

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

It is not a de Polignac number, because 228249515 - 2¹⁸ = 227987371 is a prime.

It is a Duffinian 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, 1755701 + ... + 1755830.

It is an arithmetic number, because the mean of its divisors is an integer number (36871086).

Almost surely, 2^228249515 is an apocalyptic number.

228249515 is a deficient number, since it is larger than the sum of its proper divisors (66719173).

228249515 is a wasteful number, since it uses less digits than its factorization.

228249515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511549.

The product of its digits is 57600, while the sum is 38.

The square root of 228249515 is about 15107.9288785723. The cubic root of 228249515 is about 611.1342463663.

The spelling of 228249515 in words is "two hundred twenty-eight million, two hundred forty-nine thousand, five hundred fifteen".