227148145 has 16 divisors (see below), whose sum is σ = 318764160. Its totient is φ = 152135424.

The previous prime is 227148139. The next prime is 227148149. The reversal of 227148145 is 541841722.

It is not a de Polignac number, because 227148145 - 2³ = 227148137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227148145.

It is not an unprimeable number, because it can be changed into a prime (227148149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73960 + ... + 76969.

It is an arithmetic number, because the mean of its divisors is an integer number (19922760).

Almost surely, 2^227148145 is an apocalyptic number.

It is an amenable number.

227148145 is a deficient number, since it is larger than the sum of its proper divisors (91616015).

227148145 is a wasteful number, since it uses less digits than its factorization.

227148145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150984.

The product of its digits is 17920, while the sum is 34.

The square root of 227148145 is about 15071.4347359500. The cubic root of 227148145 is about 610.1496945169.

Adding to 227148145 its reverse (541841722), we get a palindrome (768989867).

The spelling of 227148145 in words is "two hundred twenty-seven million, one hundred forty-eight thousand, one hundred forty-five".