144431227 has 2 divisors, whose sum is σ = 144431228. Its totient is φ = 144431226.

The previous prime is 144431219. The next prime is 144431257. The reversal of 144431227 is 722134441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144431227 - 2³ = 144431219 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 144431195 and 144431204.

It is not a weakly prime, because it can be changed into another prime (144431257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72215613 + 72215614.

It is an arithmetic number, because the mean of its divisors is an integer number (72215614).

Almost surely, 2^144431227 is an apocalyptic number.

144431227 is a deficient number, since it is larger than the sum of its proper divisors (1).

144431227 is an equidigital number, since it uses as much as digits as its factorization.

144431227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 144431227 is about 12017.9543600398. The cubic root of 144431227 is about 524.6709678279.

Adding to 144431227 its reverse (722134441), we get a palindrome (866565668).

The spelling of 144431227 in words is "one hundred forty-four million, four hundred thirty-one thousand, two hundred twenty-seven".