227005147 has 4 divisors (see below), whose sum is σ = 236874960. Its totient is φ = 217135336.

The previous prime is 227005139. The next prime is 227005183. The reversal of 227005147 is 741500722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 227005147 - 2³ = 227005139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227005117) 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 in 3 ways as a sum of consecutive naturals, for example, 4934872 + ... + 4934917.

It is an arithmetic number, because the mean of its divisors is an integer number (59218740).

Almost surely, 2^227005147 is an apocalyptic number.

227005147 is a deficient number, since it is larger than the sum of its proper divisors (9869813).

227005147 is an equidigital number, since it uses as much as digits as its factorization.

227005147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869812.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 227005147 is about 15066.6899815454. The cubic root of 227005147 is about 610.0216305149.

Adding to 227005147 its reverse (741500722), we get a palindrome (968505869).

The spelling of 227005147 in words is "two hundred twenty-seven million, five thousand, one hundred forty-seven".