145004445 has 16 divisors (see below), whose sum is σ = 257785920. Its totient is φ = 77335632.

The previous prime is 145004423. The next prime is 145004459. The reversal of 145004445 is 544400541.

145004445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145004445 - 2¹⁴ = 144988061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536919 + ... + 537188.

It is an arithmetic number, because the mean of its divisors is an integer number (16111620).

Almost surely, 2^145004445 is an apocalyptic number.

145004445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145004445 is a deficient number, since it is larger than the sum of its proper divisors (112781475).

145004445 is a wasteful number, since it uses less digits than its factorization.

145004445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074121 (or 1074115 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 145004445 is about 12041.7791459568. The cubic root of 145004445 is about 525.3641555158.

Adding to 145004445 its reverse (544400541), we get a palindrome (689404986).

The spelling of 145004445 in words is "one hundred forty-five million, four thousand, four hundred forty-five".