228117371 has 2 divisors, whose sum is σ = 228117372. Its totient is φ = 228117370.

The previous prime is 228117349. The next prime is 228117397. The reversal of 228117371 is 173711822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228117371 - 2²² = 223923067 is a prime.

It is equal to p_12544655 and since 228117371 and 12544655 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (228117311) 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, 114058685 + 114058686.

It is an arithmetic number, because the mean of its divisors is an integer number (114058686).

Almost surely, 2^228117371 is an apocalyptic number.

228117371 is a deficient number, since it is larger than the sum of its proper divisors (1).

228117371 is an equidigital number, since it uses as much as digits as its factorization.

228117371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 32.

The square root of 228117371 is about 15103.5549126687. The cubic root of 228117371 is about 611.0162858182.

The spelling of 228117371 in words is "two hundred twenty-eight million, one hundred seventeen thousand, three hundred seventy-one".