45335021 has 2 divisors, whose sum is σ = 45335022. Its totient is φ = 45335020.

The previous prime is 45334999. The next prime is 45335023. The reversal of 45335021 is 12053354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 6832996 = 6205^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 45335021 - 2⁶ = 45334957 is a prime.

It is a Sophie Germain prime.

Together with 45335023, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45335023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22667510 + 22667511.

It is an arithmetic number, because the mean of its divisors is an integer number (22667511).

Almost surely, 2^45335021 is an apocalyptic number.

It is an amenable number.

45335021 is a deficient number, since it is larger than the sum of its proper divisors (1).

45335021 is an equidigital number, since it uses as much as digits as its factorization.

45335021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 45335021 is about 6733.1286190002. The cubic root of 45335021 is about 356.5698407598.

Adding to 45335021 its reverse (12053354), we get a palindrome (57388375).

The spelling of 45335021 in words is "forty-five million, three hundred thirty-five thousand, twenty-one".