103506545 has 4 divisors (see below), whose sum is σ = 124207860. Its totient is φ = 82805232.

The previous prime is 103506541. The next prime is 103506563. The reversal of 103506545 is 545605301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66064384 + 37442161 = 8128^2 + 6119^2 .

It is a cyclic number.

It is not a de Polignac number, because 103506545 - 2² = 103506541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103506541) 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, 10350650 + ... + 10350659.

It is an arithmetic number, because the mean of its divisors is an integer number (31051965).

Almost surely, 2^103506545 is an apocalyptic number.

It is an amenable number.

103506545 is a deficient number, since it is larger than the sum of its proper divisors (20701315).

103506545 is an equidigital number, since it uses as much as digits as its factorization.

103506545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20701314.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 103506545 is about 10173.8166388037. The cubic root of 103506545 is about 469.5219902424.

The spelling of 103506545 in words is "one hundred three million, five hundred six thousand, five hundred forty-five".