228132015 has 16 divisors (see below), whose sum is σ = 365666400. Its totient is φ = 121452032.

The previous prime is 228132011. The next prime is 228132019. The reversal of 228132015 is 510231822.

228132015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228132011) and next prime (228132019).

It is a cyclic number.

It is not a de Polignac number, because 228132015 - 2² = 228132011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228132011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4830 + ... + 21899.

It is an arithmetic number, because the mean of its divisors is an integer number (22854150).

Almost surely, 2^228132015 is an apocalyptic number.

228132015 is a deficient number, since it is larger than the sum of its proper divisors (137534385).

228132015 is a wasteful number, since it uses less digits than its factorization.

228132015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27306.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 228132015 is about 15104.0396914203. The cubic root of 228132015 is about 611.0293602734.

Adding to 228132015 its reverse (510231822), we get a palindrome (738363837).

The spelling of 228132015 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, fifteen".