228902143 has 2 divisors, whose sum is σ = 228902144. Its totient is φ = 228902142.

The previous prime is 228902137. The next prime is 228902147. The reversal of 228902143 is 341209822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228902143 - 2¹⁷ = 228771071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228902147) 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, 114451071 + 114451072.

It is an arithmetic number, because the mean of its divisors is an integer number (114451072).

Almost surely, 2^228902143 is an apocalyptic number.

228902143 is a deficient number, since it is larger than the sum of its proper divisors (1).

228902143 is an equidigital number, since it uses as much as digits as its factorization.

228902143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 228902143 is about 15129.5123186440. The cubic root of 228902143 is about 611.7161589419.

The spelling of 228902143 in words is "two hundred twenty-eight million, nine hundred two thousand, one hundred forty-three".