144189955 has 48 divisors (see below), whose sum is σ = 225573120. Its totient is φ = 86396544.

The previous prime is 144189949. The next prime is 144189973. The reversal of 144189955 is 559981441.

It is a happy number.

It is not a de Polignac number, because 144189955 - 2⁹ = 144189443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111744 + ... + 113026.

It is an arithmetic number, because the mean of its divisors is an integer number (4699440).

Almost surely, 2^144189955 is an apocalyptic number.

144189955 is a deficient number, since it is larger than the sum of its proper divisors (81383165).

144189955 is a wasteful number, since it uses less digits than its factorization.

144189955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 1327 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The square root of 144189955 is about 12007.9121832232. The cubic root of 144189955 is about 524.3786511537.

The spelling of 144189955 in words is "one hundred forty-four million, one hundred eighty-nine thousand, nine hundred fifty-five".