228135071 has 8 divisors (see below), whose sum is σ = 241390320. Its totient is φ = 215004672.

The previous prime is 228135049. The next prime is 228135079. The reversal of 228135071 is 170531822.

228135071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 228135071 - 2¹⁰ = 228134047 is a prime.

It is a super-2 number, since 2×228135071² = 104091221240350082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228135079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27440 + ... + 34773.

It is an arithmetic number, because the mean of its divisors is an integer number (30173790).

Almost surely, 2^228135071 is an apocalyptic number.

228135071 is a deficient number, since it is larger than the sum of its proper divisors (13255249).

228135071 is a wasteful number, since it uses less digits than its factorization.

228135071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62425.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 228135071 is about 15104.1408560699. The cubic root of 228135071 is about 611.0320886606.

Adding to 228135071 its reverse (170531822), we get a palindrome (398666893).

The spelling of 228135071 in words is "two hundred twenty-eight million, one hundred thirty-five thousand, seventy-one".