144391027 has 12 divisors (see below), whose sum is σ = 160579944. Its totient is φ = 128760320.

The previous prime is 144391021. The next prime is 144391031. The reversal of 144391027 is 720193441.

It is not a de Polignac number, because 144391027 - 2²⁷ = 10173299 is a prime.

It is a super-2 number, since 2×144391027² = 41697537356229458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144391027.

It is not an unprimeable number, because it can be changed into a prime (144391021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28563 + ... + 33235.

It is an arithmetic number, because the mean of its divisors is an integer number (13381662).

Almost surely, 2^144391027 is an apocalyptic number.

144391027 is a deficient number, since it is larger than the sum of its proper divisors (16188917).

144391027 is an equidigital number, since it uses as much as digits as its factorization.

144391027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790 (or 4737 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 144391027 is about 12016.2817460311. The cubic root of 144391027 is about 524.6222855346.

The spelling of 144391027 in words is "one hundred forty-four million, three hundred ninety-one thousand, twenty-seven".