228144526 has 4 divisors (see below), whose sum is σ = 342216792. Its totient is φ = 114072262.

The previous prime is 228144523. The next prime is 228144529. The reversal of 228144526 is 625441822.

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

It is an interprime number because it is at equal distance from previous prime (228144523) and next prime (228144529).

It is a junction number, because it is equal to n+sod(n) for n = 228144491 and 228144500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57036130 + ... + 57036133.

It is an arithmetic number, because the mean of its divisors is an integer number (85554198).

Almost surely, 2^228144526 is an apocalyptic number.

228144526 is a deficient number, since it is larger than the sum of its proper divisors (114072266).

228144526 is a wasteful number, since it uses less digits than its factorization.

228144526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114072265.

The product of its digits is 30720, while the sum is 34.

The square root of 228144526 is about 15104.4538464653. The cubic root of 228144526 is about 611.0405299005.

The spelling of 228144526 in words is "two hundred twenty-eight million, one hundred forty-four thousand, five hundred twenty-six".