228271651 has 2 divisors, whose sum is σ = 228271652. Its totient is φ = 228271650.

The previous prime is 228271633. The next prime is 228271691. The reversal of 228271651 is 156172822.

It is a happy number.

228271651 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 is a cyclic number.

It is not a de Polignac number, because 228271651 - 2⁷ = 228271523 is a prime.

It is not a weakly prime, because it can be changed into another prime (228271601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114135825 + 114135826.

It is an arithmetic number, because the mean of its divisors is an integer number (114135826).

Almost surely, 2^228271651 is an apocalyptic number.

228271651 is a deficient number, since it is larger than the sum of its proper divisors (1).

228271651 is an equidigital number, since it uses as much as digits as its factorization.

228271651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 228271651 is about 15108.6614562641. The cubic root of 228271651 is about 611.1540019838.

The spelling of 228271651 in words is "two hundred twenty-eight million, two hundred seventy-one thousand, six hundred fifty-one".