45334021 has 2 divisors, whose sum is σ = 45334022. Its totient is φ = 45334020.

The previous prime is 45334013. The next prime is 45334043. The reversal of 45334021 is 12043354.

It is an a-pointer prime, because the next prime (45334043) can be obtained adding 45334021 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44957025 + 376996 = 6705^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 45334021 - 2³ = 45334013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45333983 and 45334001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45334001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22667010 + 22667011.

It is an arithmetic number, because the mean of its divisors is an integer number (22667011).

Almost surely, 2^45334021 is an apocalyptic number.

It is an amenable number.

45334021 is a deficient number, since it is larger than the sum of its proper divisors (1).

45334021 is an equidigital number, since it uses as much as digits as its factorization.

45334021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 45334021 is about 6733.0543589073. The cubic root of 45334021 is about 356.5672190011.

Adding to 45334021 its reverse (12043354), we get a palindrome (57377375).

The spelling of 45334021 in words is "forty-five million, three hundred thirty-four thousand, twenty-one".