145533144 has 32 divisors (see below), whose sum is σ = 379653120. Its totient is φ = 46401696.

The previous prime is 145533119. The next prime is 145533163. The reversal of 145533144 is 441335541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131272 + ... + 132375.

It is an arithmetic number, because the mean of its divisors is an integer number (11864160).

Almost surely, 2^145533144 is an apocalyptic number.

It is an amenable number.

145533144 is an abundant number, since it is smaller than the sum of its proper divisors (234119976).

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

145533144 is a wasteful number, since it uses less digits than its factorization.

145533144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263679 (or 263675 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 145533144 is about 12063.7118665857. The cubic root of 145533144 is about 526.0018890861.

Adding to 145533144 its reverse (441335541), we get a palindrome (586868685).

The spelling of 145533144 in words is "one hundred forty-five million, five hundred thirty-three thousand, one hundred forty-four".