228757503 has 16 divisors (see below), whose sum is σ = 333860576. Its totient is φ = 138464640.

The previous prime is 228757493. The next prime is 228757513. The reversal of 228757503 is 305757822.

It is an interprime number because it is at equal distance from previous prime (228757493) and next prime (228757513).

It is not a de Polignac number, because 228757503 - 2⁸ = 228757247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228757513) 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 15 ways as a sum of consecutive naturals, for example, 45700 + ... + 50457.

It is an arithmetic number, because the mean of its divisors is an integer number (20866286).

Almost surely, 2^228757503 is an apocalyptic number.

228757503 is a deficient number, since it is larger than the sum of its proper divisors (105103073).

228757503 is a wasteful number, since it uses less digits than its factorization.

228757503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96234.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 228757503 is about 15124.7315017490. The cubic root of 228757503 is about 611.5872868880.

The spelling of 228757503 in words is "two hundred twenty-eight million, seven hundred fifty-seven thousand, five hundred three".