45315709 has 2 divisors, whose sum is σ = 45315710. Its totient is φ = 45315708.

The previous prime is 45315671. The next prime is 45315731. The reversal of 45315709 is 90751354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43599609 + 1716100 = 6603^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 45315709 - 2⁷ = 45315581 is a prime.

It is equal to p_2736178 and since 45315709 and 2736178 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45315749) 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, 22657854 + 22657855.

It is an arithmetic number, because the mean of its divisors is an integer number (22657855).

Almost surely, 2^45315709 is an apocalyptic number.

It is an amenable number.

45315709 is a deficient number, since it is larger than the sum of its proper divisors (1).

45315709 is an equidigital number, since it uses as much as digits as its factorization.

45315709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 45315709 is about 6731.6943632343. The cubic root of 45315709 is about 356.5192025363.

The spelling of 45315709 in words is "forty-five million, three hundred fifteen thousand, seven hundred nine".