145503244 has 24 divisors (see below), whose sum is σ = 266259168. Its totient is φ = 69442560.

The previous prime is 145503223. The next prime is 145503247. The reversal of 145503244 is 442305541.

It is not an unprimeable number, because it can be changed into a prime (145503247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51714 + ... + 54454.

It is an arithmetic number, because the mean of its divisors is an integer number (11094132).

Almost surely, 2^145503244 is an apocalyptic number.

It is an amenable number.

145503244 is a deficient number, since it is larger than the sum of its proper divisors (120755924).

145503244 is a wasteful number, since it uses less digits than its factorization.

145503244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 145503244 is about 12062.4725491916. The cubic root of 145503244 is about 525.9658639965.

Adding to 145503244 its reverse (442305541), we get a palindrome (587808785).

The spelling of 145503244 in words is "one hundred forty-five million, five hundred three thousand, two hundred forty-four".