145474144 has 24 divisors (see below), whose sum is σ = 287091000. Its totient is φ = 72562176.

The previous prime is 145474123. The next prime is 145474171. The reversal of 145474144 is 441474541.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8607 + ... + 19105.

It is an arithmetic number, because the mean of its divisors is an integer number (11962125).

Almost surely, 2^145474144 is an apocalyptic number.

It is an amenable number.

145474144 is a deficient number, since it is larger than the sum of its proper divisors (141616856).

145474144 is a wasteful number, since it uses less digits than its factorization.

145474144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10942 (or 10934 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 145474144 is about 12061.2662685143. The cubic root of 145474144 is about 525.9307980495.

The spelling of 145474144 in words is "one hundred forty-five million, four hundred seventy-four thousand, one hundred forty-four".