145331323 has 8 divisors (see below), whose sum is σ = 154918400. Its totient is φ = 135938088.

The previous prime is 145331321. The next prime is 145331369. The reversal of 145331323 is 323133541.

145331323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145331323 - 2¹ = 145331321 is a prime.

It is a super-2 number, since 2×145331323² = 42242386889860658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145331321) 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, 46911 + ... + 49912.

It is an arithmetic number, because the mean of its divisors is an integer number (19364800).

Almost surely, 2^145331323 is an apocalyptic number.

145331323 is a deficient number, since it is larger than the sum of its proper divisors (9587077).

145331323 is an equidigital number, since it uses as much as digits as its factorization.

145331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96921.

The product of its digits is 3240, while the sum is 25.

The square root of 145331323 is about 12055.3441676296. The cubic root of 145331323 is about 525.7586287205.

Adding to 145331323 its reverse (323133541), we get a palindrome (468464864).

The spelling of 145331323 in words is "one hundred forty-five million, three hundred thirty-one thousand, three hundred twenty-three".