45878513 has 2 divisors, whose sum is σ = 45878514. Its totient is φ = 45878512.

The previous prime is 45878507. The next prime is 45878519. The reversal of 45878513 is 31587854.

45878513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (45878507) and next prime (45878519).

It can be written as a sum of positive squares in only one way, i.e., 43652449 + 2226064 = 6607^2 + 1492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45878513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45878519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22939256 + 22939257.

It is an arithmetic number, because the mean of its divisors is an integer number (22939257).

Almost surely, 2^45878513 is an apocalyptic number.

It is an amenable number.

45878513 is a deficient number, since it is larger than the sum of its proper divisors (1).

45878513 is an equidigital number, since it uses as much as digits as its factorization.

45878513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 41.

The square root of 45878513 is about 6773.3679214996. The cubic root of 45878513 is about 357.9890787634.

It can be divided in two parts, 4587851 and 3, that added together give a palindrome (4587854).

The spelling of 45878513 in words is "forty-five million, eight hundred seventy-eight thousand, five hundred thirteen".