145489153 has 4 divisors (see below), whose sum is σ = 147538368. Its totient is φ = 143439940.

The previous prime is 145489129. The next prime is 145489159. The reversal of 145489153 is 351984541.

145489153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145489153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145489159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024501 + ... + 1024642.

It is an arithmetic number, because the mean of its divisors is an integer number (36884592).

Almost surely, 2^145489153 is an apocalyptic number.

It is an amenable number.

145489153 is a deficient number, since it is larger than the sum of its proper divisors (2049215).

145489153 is an equidigital number, since it uses as much as digits as its factorization.

145489153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049214.

The product of its digits is 86400, while the sum is 40.

The square root of 145489153 is about 12061.8884508190. Note that the first 3 decimals coincide. The cubic root of 145489153 is about 525.9488847089.

The spelling of 145489153 in words is "one hundred forty-five million, four hundred eighty-nine thousand, one hundred fifty-three".