45314021 has 2 divisors, whose sum is σ = 45314022. Its totient is φ = 45314020.

The previous prime is 45313997. The next prime is 45314023. The reversal of 45314021 is 12041354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24611521 + 20702500 = 4961^2 + 4550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45314021 is a prime.

Together with 45314023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45313984 and 45314002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45314023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22657010 + 22657011.

It is an arithmetic number, because the mean of its divisors is an integer number (22657011).

Almost surely, 2^45314021 is an apocalyptic number.

It is an amenable number.

45314021 is a deficient number, since it is larger than the sum of its proper divisors (1).

45314021 is an equidigital number, since it uses as much as digits as its factorization.

45314021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 45314021 is about 6731.5689850138. The cubic root of 45314021 is about 356.5147757279.

Adding to 45314021 its reverse (12041354), we get a palindrome (57355375).

The spelling of 45314021 in words is "forty-five million, three hundred fourteen thousand, twenty-one".