228148783 has 2 divisors, whose sum is σ = 228148784. Its totient is φ = 228148782.

The previous prime is 228148757. The next prime is 228148787. The reversal of 228148783 is 387841822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228148783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228148787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114074391 + 114074392.

It is an arithmetic number, because the mean of its divisors is an integer number (114074392).

Almost surely, 2^228148783 is an apocalyptic number.

228148783 is a deficient number, since it is larger than the sum of its proper divisors (1).

228148783 is an equidigital number, since it uses as much as digits as its factorization.

228148783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 43.

The square root of 228148783 is about 15104.5947645079. The cubic root of 228148783 is about 611.0443303910.

The spelling of 228148783 in words is "two hundred twenty-eight million, one hundred forty-eight thousand, seven hundred eighty-three".