228132915 has 8 divisors (see below), whose sum is σ = 365012688. Its totient is φ = 121670880.

The previous prime is 228132907. The next prime is 228132953. The reversal of 228132915 is 519231822.

It is a happy number.

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

It is not a de Polignac number, because 228132915 - 2³ = 228132907 is a prime.

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, 7604416 + ... + 7604445.

It is an arithmetic number, because the mean of its divisors is an integer number (45626586).

Almost surely, 2^228132915 is an apocalyptic number.

228132915 is a deficient number, since it is larger than the sum of its proper divisors (136879773).

228132915 is a wasteful number, since it uses less digits than its factorization.

228132915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15208869.

The product of its digits is 8640, while the sum is 33.

The square root of 228132915 is about 15104.0694847448. The cubic root of 228132915 is about 611.0301637931.

The spelling of 228132915 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, nine hundred fifteen".