228340501 has 2 divisors, whose sum is σ = 228340502. Its totient is φ = 228340500.

The previous prime is 228340493. The next prime is 228340517. The reversal of 228340501 is 105043822.

228340501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201611601 + 26728900 = 14199^2 + 5170^2 .

It is a cyclic number.

It is not a de Polignac number, because 228340501 - 2³ = 228340493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228340571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114170250 + 114170251.

It is an arithmetic number, because the mean of its divisors is an integer number (114170251).

Almost surely, 2^228340501 is an apocalyptic number.

It is an amenable number.

228340501 is a deficient number, since it is larger than the sum of its proper divisors (1).

228340501 is an equidigital number, since it uses as much as digits as its factorization.

228340501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 228340501 is about 15110.9397788490. The cubic root of 228340501 is about 611.2154400747.

The spelling of 228340501 in words is "two hundred twenty-eight million, three hundred forty thousand, five hundred one".