144127881 has 12 divisors (see below), whose sum is σ = 209051700. Its totient is φ = 95685120.

The previous prime is 144127861. The next prime is 144127891. The reversal of 144127881 is 188721441.

144127881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 128255625 + 15872256 = 11325^2 + 3984^2 .

It is not a de Polignac number, because 144127881 - 2¹¹ = 144125833 is a prime.

It is a super-2 number, since 2×144127881² = 41545692163100322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144127801) 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, 31056 + ... + 35393.

It is an arithmetic number, because the mean of its divisors is an integer number (17420975).

Almost surely, 2^144127881 is an apocalyptic number.

It is an amenable number.

144127881 is a deficient number, since it is larger than the sum of its proper divisors (64923819).

144127881 is a wasteful number, since it uses less digits than its factorization.

144127881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66696 (or 66693 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 144127881 is about 12005.3271925425. The cubic root of 144127881 is about 524.3033917445.

The spelling of 144127881 in words is "one hundred forty-four million, one hundred twenty-seven thousand, eight hundred eighty-one".