45233021 has 4 divisors (see below), whose sum is σ = 45293532. Its totient is φ = 45172512.

The previous prime is 45233017. The next prime is 45233051. The reversal of 45233021 is 12033254.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28504921 + 16728100 = 5339^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 45233021 - 2² = 45233017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45232984 and 45233002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45233051) 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, 29120 + ... + 30633.

It is an arithmetic number, because the mean of its divisors is an integer number (11323383).

Almost surely, 2^45233021 is an apocalyptic number.

It is an amenable number.

45233021 is a deficient number, since it is larger than the sum of its proper divisors (60511).

45233021 is an equidigital number, since it uses as much as digits as its factorization.

45233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60510.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 45233021 is about 6725.5498659961. The cubic root of 45233021 is about 356.3022225280.

Adding to 45233021 its reverse (12033254), we get a palindrome (57266275).

The spelling of 45233021 in words is "forty-five million, two hundred thirty-three thousand, twenty-one".