45515311 has 4 divisors (see below), whose sum is σ = 46194712. Its totient is φ = 44835912.

The previous prime is 45515293. The next prime is 45515357. The reversal of 45515311 is 11351554.

It is a happy number.

45515311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45515311 - 2¹¹ = 45513263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515381) 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 in 3 ways as a sum of consecutive naturals, for example, 339600 + ... + 339733.

It is an arithmetic number, because the mean of its divisors is an integer number (11548678).

Almost surely, 2^45515311 is an apocalyptic number.

45515311 is a deficient number, since it is larger than the sum of its proper divisors (679401).

45515311 is an equidigital number, since it uses as much as digits as its factorization.

45515311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679400.

The product of its digits is 1500, while the sum is 25.

The square root of 45515311 is about 6746.5036129835. The cubic root of 45515311 is about 357.0418889665.

Adding to 45515311 its reverse (11351554), we get a palindrome (56866865).

The spelling of 45515311 in words is "forty-five million, five hundred fifteen thousand, three hundred eleven".