228675139 has 8 divisors (see below), whose sum is σ = 285101568. Its totient is φ = 178188360.

The previous prime is 228675137. The next prime is 228675169. The reversal of 228675139 is 931576822.

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

It is not a de Polignac number, because 228675139 - 2¹ = 228675137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228675095 and 228675104.

It is not an unprimeable number, because it can be changed into a prime (228675137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484827 + ... + 1484980.

It is an arithmetic number, because the mean of its divisors is an integer number (35637696).

Almost surely, 2^228675139 is an apocalyptic number.

228675139 is a deficient number, since it is larger than the sum of its proper divisors (56426429).

228675139 is a wasteful number, since it uses less digits than its factorization.

228675139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969825.

The product of its digits is 181440, while the sum is 43.

The square root of 228675139 is about 15122.0084314221. The cubic root of 228675139 is about 611.5138775333.

The spelling of 228675139 in words is "two hundred twenty-eight million, six hundred seventy-five thousand, one hundred thirty-nine".