228158851 has 2 divisors, whose sum is σ = 228158852. Its totient is φ = 228158850.

The previous prime is 228158831. The next prime is 228158867. The reversal of 228158851 is 158851822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228158851 - 2¹⁵ = 228126083 is a prime.

It is a super-2 number, since 2×228158851² = 104112922579280402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (228158831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114079425 + 114079426.

It is an arithmetic number, because the mean of its divisors is an integer number (114079426).

Almost surely, 2^228158851 is an apocalyptic number.

228158851 is a deficient number, since it is larger than the sum of its proper divisors (1).

228158851 is an equidigital number, since it uses as much as digits as its factorization.

228158851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51200, while the sum is 40.

The square root of 228158851 is about 15104.9280369024. The cubic root of 228158851 is about 611.0533185372.

The spelling of 228158851 in words is "two hundred twenty-eight million, one hundred fifty-eight thousand, eight hundred fifty-one".