145443253 has 4 divisors (see below), whose sum is σ = 146204928. Its totient is φ = 144681580.

The previous prime is 145443251. The next prime is 145443257. The reversal of 145443253 is 352344541.

145443253 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 not a de Polignac number, because 145443253 - 2¹ = 145443251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145443251) 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, 380551 + ... + 380932.

It is an arithmetic number, because the mean of its divisors is an integer number (36551232).

Almost surely, 2^145443253 is an apocalyptic number.

It is an amenable number.

145443253 is a deficient number, since it is larger than the sum of its proper divisors (761675).

145443253 is an equidigital number, since it uses as much as digits as its factorization.

145443253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761674.

The product of its digits is 28800, while the sum is 31.

The square root of 145443253 is about 12059.9856135901. The cubic root of 145443253 is about 525.8935688028.

Adding to 145443253 its reverse (352344541), we get a palindrome (497787794).

The spelling of 145443253 in words is "one hundred forty-five million, four hundred forty-three thousand, two hundred fifty-three".