144121888 has 24 divisors (see below), whose sum is σ = 290663100. Its totient is φ = 70302720.

The previous prime is 144121867. The next prime is 144121931. The reversal of 144121888 is 888121441.

It can be written as a sum of positive squares in 2 ways, for example, as 108743184 + 35378704 = 10428^2 + 5948^2 .

It is a super-2 number, since 2×144121888² = 41542237201369088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53613 + ... + 56236.

Almost surely, 2^144121888 is an apocalyptic number.

It is an amenable number.

144121888 is an abundant number, since it is smaller than the sum of its proper divisors (146541212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144121888 is a wasteful number, since it uses less digits than its factorization.

144121888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109900 (or 109892 counting only the distinct ones).

The product of its digits is 16384, while the sum is 37.

The square root of 144121888 is about 12005.0775924190. The cubic root of 144121888 is about 524.2961246014.

The spelling of 144121888 in words is "one hundred forty-four million, one hundred twenty-one thousand, eight hundred eighty-eight".