228013427 has 2 divisors, whose sum is σ = 228013428. Its totient is φ = 228013426.

The previous prime is 228013411. The next prime is 228013441. The reversal of 228013427 is 724310822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228013427 - 2⁴ = 228013411 is a prime.

It is a super-3 number, since 3×228013427³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228013427.

It is not a weakly prime, because it can be changed into another prime (228012427) 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, 114006713 + 114006714.

It is an arithmetic number, because the mean of its divisors is an integer number (114006714).

Almost surely, 2^228013427 is an apocalyptic number.

228013427 is a deficient number, since it is larger than the sum of its proper divisors (1).

228013427 is an equidigital number, since it uses as much as digits as its factorization.

228013427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 228013427 is about 15100.1134763948. The cubic root of 228013427 is about 610.9234664573.

The spelling of 228013427 in words is "two hundred twenty-eight million, thirteen thousand, four hundred twenty-seven".