45103815 has 48 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 22438080.

The previous prime is 45103811. The next prime is 45103823. The reversal of 45103815 is 51830154.

45103815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45103815 - 2² = 45103811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45103811) 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 47 ways as a sum of consecutive naturals, for example, 60334 + ... + 61076.

It is an arithmetic number, because the mean of its divisors is an integer number (1740960).

Almost surely, 2^45103815 is an apocalyptic number.

45103815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45103815 is a deficient number, since it is larger than the sum of its proper divisors (38462265).

45103815 is a wasteful number, since it uses less digits than its factorization.

45103815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 45103815 is about 6715.9373880345. The cubic root of 45103815 is about 355.9626454725.

Adding to 45103815 its reverse (51830154), we get a palindrome (96933969).

The spelling of 45103815 in words is "forty-five million, one hundred three thousand, eight hundred fifteen".