45307513 has 2 divisors, whose sum is σ = 45307514. Its totient is φ = 45307512.

The previous prime is 45307511. The next prime is 45307519. The reversal of 45307513 is 31570354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44997264 + 310249 = 6708^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 45307513 - 2¹ = 45307511 is a prime.

Together with 45307511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45307511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22653756 + 22653757.

It is an arithmetic number, because the mean of its divisors is an integer number (22653757).

Almost surely, 2^45307513 is an apocalyptic number.

It is an amenable number.

45307513 is a deficient number, since it is larger than the sum of its proper divisors (1).

45307513 is an equidigital number, since it uses as much as digits as its factorization.

45307513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 45307513 is about 6731.0855736649. The cubic root of 45307513 is about 356.4977073592.

Adding to 45307513 its reverse (31570354), we get a palindrome (76877867).

The spelling of 45307513 in words is "forty-five million, three hundred seven thousand, five hundred thirteen".