144121884 has 12 divisors (see below), whose sum is σ = 336284424. Its totient is φ = 48040624.

The previous prime is 144121867. The next prime is 144121931. The reversal of 144121884 is 488121441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×144121884² = 41542234895418912, which contains 22 as substring.

It is a congruent number.

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, 6005067 + ... + 6005090.

It is an arithmetic number, because the mean of its divisors is an integer number (28023702).

Almost surely, 2^144121884 is an apocalyptic number.

It is an amenable number.

144121884 is an abundant number, since it is smaller than the sum of its proper divisors (192162540).

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

144121884 is a wasteful number, since it uses less digits than its factorization.

144121884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010164 (or 12010162 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 144121884 is about 12005.0774258228. The cubic root of 144121884 is about 524.2961197510.

The spelling of 144121884 in words is "one hundred forty-four million, one hundred twenty-one thousand, eight hundred eighty-four".