228571403 has 2 divisors, whose sum is σ = 228571404. Its totient is φ = 228571402.

The previous prime is 228571373. The next prime is 228571423. The reversal of 228571403 is 304175822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228571403 - 2¹⁸ = 228309259 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228571403.

It is not a weakly prime, because it can be changed into another prime (228571423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114285701 + 114285702.

It is an arithmetic number, because the mean of its divisors is an integer number (114285702).

Almost surely, 2^228571403 is an apocalyptic number.

228571403 is a deficient number, since it is larger than the sum of its proper divisors (1).

228571403 is an equidigital number, since it uses as much as digits as its factorization.

228571403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 228571403 is about 15118.5780746736. The cubic root of 228571403 is about 611.4213946648.

The spelling of 228571403 in words is "two hundred twenty-eight million, five hundred seventy-one thousand, four hundred three".