45107021 has 2 divisors, whose sum is σ = 45107022. Its totient is φ = 45107020.

The previous prime is 45107003. The next prime is 45107039. The reversal of 45107021 is 12070154.

It is a balanced prime because it is at equal distance from previous prime (45107003) and next prime (45107039).

It can be written as a sum of positive squares in only one way, i.e., 39513796 + 5593225 = 6286^2 + 2365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45107021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45106984 and 45107002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45107221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22553510 + 22553511.

It is an arithmetic number, because the mean of its divisors is an integer number (22553511).

Almost surely, 2^45107021 is an apocalyptic number.

It is an amenable number.

45107021 is a deficient number, since it is larger than the sum of its proper divisors (1).

45107021 is an equidigital number, since it uses as much as digits as its factorization.

45107021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 45107021 is about 6716.1760697587. The cubic root of 45107021 is about 355.9710792691.

Adding to 45107021 its reverse (12070154), we get a palindrome (57177175).

The spelling of 45107021 in words is "forty-five million, one hundred seven thousand, twenty-one".