228297523 has 4 divisors (see below), whose sum is σ = 228336768. Its totient is φ = 228258280.

The previous prime is 228297473. The next prime is 228297529. The reversal of 228297523 is 325792822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228297523 - 2¹³ = 228289331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228297529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8968 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (57084192).

Almost surely, 2^228297523 is an apocalyptic number.

228297523 is a deficient number, since it is larger than the sum of its proper divisors (39245).

228297523 is an equidigital number, since it uses as much as digits as its factorization.

228297523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39244.

The product of its digits is 120960, while the sum is 40.

The square root of 228297523 is about 15109.5176296267. The cubic root of 228297523 is about 611.1770902341.

The spelling of 228297523 in words is "two hundred twenty-eight million, two hundred ninety-seven thousand, five hundred twenty-three".