228144651 has 16 divisors (see below), whose sum is σ = 350901504. Its totient is φ = 129148704.

The previous prime is 228144617. The next prime is 228144667. The reversal of 228144651 is 156441822.

It is a happy number.

228144651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228144651 - 2⁷ = 228144523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228144601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48520 + ... + 53013.

It is an arithmetic number, because the mean of its divisors is an integer number (21931344).

Almost surely, 2^228144651 is an apocalyptic number.

228144651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

228144651 is a deficient number, since it is larger than the sum of its proper divisors (122756853).

228144651 is a wasteful number, since it uses less digits than its factorization.

228144651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101650.

The product of its digits is 15360, while the sum is 33.

The square root of 228144651 is about 15104.4579843171. The cubic root of 228144651 is about 611.0406414965.

The spelling of 228144651 in words is "two hundred twenty-eight million, one hundred forty-four thousand, six hundred fifty-one".