144945558 has 16 divisors (see below), whose sum is σ = 322101360. Its totient is φ = 48315168.

The previous prime is 144945551. The next prime is 144945569. The reversal of 144945558 is 855549441.

144945558 is a `hidden beast` number, since 1 + 4 + 4 + 94 + 5 + 558 = 666.

It is a super-3 number, since 3×144945558³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144945551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342035 + ... + 1342142.

It is an arithmetic number, because the mean of its divisors is an integer number (20131335).

Almost surely, 2^144945558 is an apocalyptic number.

144945558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144945558 is an abundant number, since it is smaller than the sum of its proper divisors (177155802).

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

144945558 is a wasteful number, since it uses less digits than its factorization.

144945558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684188 (or 2684182 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 144945558 is about 12039.3337855547. Note that the first 3 decimals coincide. The cubic root of 144945558 is about 525.2930282529.

The spelling of 144945558 in words is "one hundred forty-four million, nine hundred forty-five thousand, five hundred fifty-eight".