45123323 has 4 divisors (see below), whose sum is σ = 51569520. Its totient is φ = 38677128.

The previous prime is 45123319. The next prime is 45123349. The reversal of 45123323 is 32332154.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45123323 - 2² = 45123319 is a prime.

It is a super-2 number, since 2×45123323² = 4072228557124658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45120323) 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, 3223088 + ... + 3223101.

It is an arithmetic number, because the mean of its divisors is an integer number (12892380).

Almost surely, 2^45123323 is an apocalyptic number.

45123323 is a deficient number, since it is larger than the sum of its proper divisors (6446197).

45123323 is an equidigital number, since it uses as much as digits as its factorization.

45123323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446196.

The product of its digits is 2160, while the sum is 23.

The square root of 45123323 is about 6717.3895971575. The cubic root of 45123323 is about 356.0139576020.

Adding to 45123323 its reverse (32332154), we get a palindrome (77455477).

The spelling of 45123323 in words is "forty-five million, one hundred twenty-three thousand, three hundred twenty-three".