226185287 has 2 divisors, whose sum is σ = 226185288. Its totient is φ = 226185286.

The previous prime is 226185263. The next prime is 226185293. The reversal of 226185287 is 782581622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226185287 - 2¹⁰ = 226184263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226185227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113092643 + 113092644.

It is an arithmetic number, because the mean of its divisors is an integer number (113092644).

Almost surely, 2^226185287 is an apocalyptic number.

226185287 is a deficient number, since it is larger than the sum of its proper divisors (1).

226185287 is an equidigital number, since it uses as much as digits as its factorization.

226185287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 41.

The square root of 226185287 is about 15039.4576697433. The cubic root of 226185287 is about 609.2863525556.

The spelling of 226185287 in words is "two hundred twenty-six million, one hundred eighty-five thousand, two hundred eighty-seven".