145004444 has 24 divisors (see below), whose sum is σ = 275795520. Its totient is φ = 66308544.

The previous prime is 145004423. The next prime is 145004459. The reversal of 145004444 is 444400541.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

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, 7124 + ... + 18459.

It is an arithmetic number, because the mean of its divisors is an integer number (11491480).

Almost surely, 2^145004444 is an apocalyptic number.

It is an amenable number.

145004444 is a deficient number, since it is larger than the sum of its proper divisors (130791076).

145004444 is a wasteful number, since it uses less digits than its factorization.

145004444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25709 (or 25707 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 145004444 is about 12041.7791044347. The cubic root of 145004444 is about 525.3641543081.

Adding to 145004444 its reverse (444400541), we get a palindrome (589404985).

The spelling of 145004444 in words is "one hundred forty-five million, four thousand, four hundred forty-four".