228355801 has 2 divisors, whose sum is σ = 228355802. Its totient is φ = 228355800.

The previous prime is 228355727. The next prime is 228355807. The reversal of 228355801 is 108553822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148718025 + 79637776 = 12195^2 + 8924^2 .

It is a cyclic number.

It is not a de Polignac number, because 228355801 - 2⁹ = 228355289 is a prime.

It is not a weakly prime, because it can be changed into another prime (228355807) 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, 114177900 + 114177901.

It is an arithmetic number, because the mean of its divisors is an integer number (114177901).

Almost surely, 2^228355801 is an apocalyptic number.

It is an amenable number.

228355801 is a deficient number, since it is larger than the sum of its proper divisors (1).

228355801 is an equidigital number, since it uses as much as digits as its factorization.

228355801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 228355801 is about 15111.4460261088. The cubic root of 228355801 is about 611.2290913065.

The spelling of 228355801 in words is "two hundred twenty-eight million, three hundred fifty-five thousand, eight hundred one".