144981552 has 80 divisors (see below), whose sum is σ = 403525760. Its totient is φ = 44706816.

The previous prime is 144981547. The next prime is 144981563. The reversal of 144981552 is 255189441.

It is a self number, because there is not a number n which added to its sum of digits gives 144981552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37368 + ... + 41064.

It is an arithmetic number, because the mean of its divisors is an integer number (5044072).

Almost surely, 2^144981552 is an apocalyptic number.

144981552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144981552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201762880).

144981552 is an abundant number, since it is smaller than the sum of its proper divisors (258544208).

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

144981552 is a wasteful number, since it uses less digits than its factorization.

144981552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770 (or 3764 counting only the distinct ones).

The product of its digits is 57600, while the sum is 39.

The square root of 144981552 is about 12040.8285429201. The cubic root of 144981552 is about 525.3365062609.

The spelling of 144981552 in words is "one hundred forty-four million, nine hundred eighty-one thousand, five hundred fifty-two".