228947453 has 18 divisors (see below), whose sum is σ = 273799386. Its totient is φ = 190880928.

The previous prime is 228947423. The next prime is 228947513. The reversal of 228947453 is 354749822.

It can be written as a sum of positive squares in 3 ways, for example, as 185558884 + 43388569 = 13622^2 + 6587^2 .

It is not a de Polignac number, because 228947453 - 2²² = 224753149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228947423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 65375 + ... + 68787.

It is an arithmetic number, because the mean of its divisors is an integer number (15211077).

Almost surely, 2^228947453 is an apocalyptic number.

It is an amenable number.

228947453 is a deficient number, since it is larger than the sum of its proper divisors (44851933).

228947453 is an equidigital number, since it uses as much as digits as its factorization.

228947453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3457 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 228947453 is about 15131.0096490618. The cubic root of 228947453 is about 611.7565182998.

The spelling of 228947453 in words is "two hundred twenty-eight million, nine hundred forty-seven thousand, four hundred fifty-three".