225230387 has 2 divisors, whose sum is σ = 225230388. Its totient is φ = 225230386.

The previous prime is 225230381. The next prime is 225230419. The reversal of 225230387 is 783032522.

It is an a-pointer prime, because the next prime (225230419) can be obtained adding 225230387 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225230387 - 2⁴ = 225230371 is a prime.

It is equal to p_12394805 and since 225230387 and 12394805 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 (225230381) 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, 112615193 + 112615194.

It is an arithmetic number, because the mean of its divisors is an integer number (112615194).

Almost surely, 2^225230387 is an apocalyptic number.

225230387 is a deficient number, since it is larger than the sum of its proper divisors (1).

225230387 is an equidigital number, since it uses as much as digits as its factorization.

225230387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 225230387 is about 15007.6776018143. The cubic root of 225230387 is about 608.4277228571.

The spelling of 225230387 in words is "two hundred twenty-five million, two hundred thirty thousand, three hundred eighty-seven".