144275331 has 16 divisors (see below), whose sum is σ = 195197184. Its totient is φ = 94774944.

The previous prime is 144275323. The next prime is 144275353. The reversal of 144275331 is 133572441.

It is a happy number.

144275331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144275331 - 2³ = 144275323 is a prime.

It is a super-2 number, since 2×144275331² = 41630742270319122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144275731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180625 + ... + 181421.

It is an arithmetic number, because the mean of its divisors is an integer number (12199824).

Almost surely, 2^144275331 is an apocalyptic number.

144275331 is a deficient number, since it is larger than the sum of its proper divisors (50921853).

144275331 is an equidigital number, since it uses as much as digits as its factorization.

144275331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610.

The product of its digits is 10080, while the sum is 30.

The square root of 144275331 is about 12011.4666465008. The cubic root of 144275331 is about 524.4821269669.

The spelling of 144275331 in words is "one hundred forty-four million, two hundred seventy-five thousand, three hundred thirty-one".