103312545 has 16 divisors (see below), whose sum is σ = 188914560. Its totient is φ = 47228544.

The previous prime is 103312543. The next prime is 103312549. The reversal of 103312545 is 545213301.

It is not a de Polignac number, because 103312545 - 2¹ = 103312543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103312541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491860 + ... + 492069.

It is an arithmetic number, because the mean of its divisors is an integer number (11807160).

Almost surely, 2^103312545 is an apocalyptic number.

103312545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103312545 is a deficient number, since it is larger than the sum of its proper divisors (85602015).

103312545 is an equidigital number, since it uses as much as digits as its factorization.

103312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983944.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 103312545 is about 10164.2778887632. The cubic root of 103312545 is about 469.2284686007.

Adding to 103312545 its reverse (545213301), we get a palindrome (648525846).

The spelling of 103312545 in words is "one hundred three million, three hundred twelve thousand, five hundred forty-five".