145542444 has 24 divisors (see below), whose sum is σ = 347497920. Its totient is φ = 47385744.

The previous prime is 145542437. The next prime is 145542517. The reversal of 145542444 is 444245541.

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, 140514 + ... + 141545.

It is an arithmetic number, because the mean of its divisors is an integer number (14479080).

Almost surely, 2^145542444 is an apocalyptic number.

It is an amenable number.

145542444 is an abundant number, since it is smaller than the sum of its proper divisors (201955476).

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

145542444 is a wasteful number, since it uses less digits than its factorization.

145542444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282109 (or 282107 counting only the distinct ones).

The product of its digits is 51200, while the sum is 33.

The square root of 145542444 is about 12064.0973139311. The cubic root of 145542444 is about 526.0130932083.

Adding to 145542444 its reverse (444245541), we get a palindrome (589787985).

The spelling of 145542444 in words is "one hundred forty-five million, five hundred forty-two thousand, four hundred forty-four".