45911813 has 2 divisors, whose sum is σ = 45911814. Its totient is φ = 45911812.

The previous prime is 45911791. The next prime is 45911821. The reversal of 45911813 is 31811954.

45911813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40538689 + 5373124 = 6367^2 + 2318^2 .

It is a cyclic number.

It is not a de Polignac number, because 45911813 - 2¹² = 45907717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45911813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45911893) 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, 22955906 + 22955907.

It is an arithmetic number, because the mean of its divisors is an integer number (22955907).

Almost surely, 2^45911813 is an apocalyptic number.

It is an amenable number.

45911813 is a deficient number, since it is larger than the sum of its proper divisors (1).

45911813 is an equidigital number, since it uses as much as digits as its factorization.

45911813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 45911813 is about 6775.8256323492. The cubic root of 45911813 is about 358.0756708846.

The spelling of 45911813 in words is "forty-five million, nine hundred eleven thousand, eight hundred thirteen".