228537315243 has 16 divisors (see below), whose sum is σ = 345777500160. Its totient is φ = 149116545288.

The previous prime is 228537315187. The next prime is 228537315257. The reversal of 228537315243 is 342513735822.

It is a happy number.

228537315243 is a `hidden beast` number, since 2 + 2 + 8 + 53 + 73 + 1 + 524 + 3 = 666.

It is not a de Polignac number, because 228537315243 - 2⁶ = 228537315179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228537315283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90044955 + ... + 90047492.

It is an arithmetic number, because the mean of its divisors is an integer number (21611093760).

Almost surely, 2^228537315243 is an apocalyptic number.

228537315243 is a deficient number, since it is larger than the sum of its proper divisors (117240184917).

228537315243 is a wasteful number, since it uses less digits than its factorization.

228537315243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180092503 (or 180092497 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 228537315243 in words is "two hundred twenty-eight billion, five hundred thirty-seven million, three hundred fifteen thousand, two hundred forty-three".