145323433 has 4 divisors (see below), whose sum is σ = 146467840. Its totient is φ = 144179028.

The previous prime is 145323427. The next prime is 145323449. The reversal of 145323433 is 334323541.

145323433 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 145323433 - 2⁵ = 145323401 is a prime.

It is a super-2 number, since 2×145323433² = 42237800357810978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145323413) 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, 572013 + ... + 572266.

It is an arithmetic number, because the mean of its divisors is an integer number (36616960).

Almost surely, 2^145323433 is an apocalyptic number.

It is an amenable number.

145323433 is a deficient number, since it is larger than the sum of its proper divisors (1144407).

145323433 is a wasteful number, since it uses less digits than its factorization.

145323433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144406.

The product of its digits is 12960, while the sum is 28.

The square root of 145323433 is about 12055.0169224269. The cubic root of 145323433 is about 525.7491141149.

Adding to 145323433 its reverse (334323541), we get a palindrome (479646974).

The spelling of 145323433 in words is "one hundred forty-five million, three hundred twenty-three thousand, four hundred thirty-three".