228613087 has 2 divisors, whose sum is σ = 228613088. Its totient is φ = 228613086.

The previous prime is 228613027. The next prime is 228613103. The reversal of 228613087 is 780316822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228613087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228613027) 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, 114306543 + 114306544.

It is an arithmetic number, because the mean of its divisors is an integer number (114306544).

Almost surely, 2^228613087 is an apocalyptic number.

228613087 is a deficient number, since it is larger than the sum of its proper divisors (1).

228613087 is an equidigital number, since it uses as much as digits as its factorization.

228613087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 228613087 is about 15119.9565806255. The cubic root of 228613087 is about 611.4585602069.

The spelling of 228613087 in words is "two hundred twenty-eight million, six hundred thirteen thousand, eighty-seven".