228653261 has 8 divisors (see below), whose sum is σ = 237479040. Its totient is φ = 219992608.

The previous prime is 228653177. The next prime is 228653311. The reversal of 228653261 is 162356822.

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 228653261 - 2¹⁸ = 228391117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228655261) 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, 38456 + ... + 44001.

It is an arithmetic number, because the mean of its divisors is an integer number (29684880).

Almost surely, 2^228653261 is an apocalyptic number.

It is an amenable number.

228653261 is a deficient number, since it is larger than the sum of its proper divisors (8825779).

228653261 is an equidigital number, since it uses as much as digits as its factorization.

228653261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82563.

The product of its digits is 34560, while the sum is 35.

The square root of 228653261 is about 15121.2850313722. The cubic root of 228653261 is about 611.4943751548.

The spelling of 228653261 in words is "two hundred twenty-eight million, six hundred fifty-three thousand, two hundred sixty-one".