103125545 has 16 divisors (see below), whose sum is σ = 127366992. Its totient is φ = 80121600.

The previous prime is 103125541. The next prime is 103125551. The reversal of 103125545 is 545521301.

It can be written as a sum of positive squares in 8 ways, for example, as 40857664 + 62267881 = 6392^2 + 7891^2 .

It is not a de Polignac number, because 103125545 - 2² = 103125541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103125541) 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, 24839 + ... + 28691.

It is an arithmetic number, because the mean of its divisors is an integer number (7960437).

Almost surely, 2^103125545 is an apocalyptic number.

It is an amenable number.

103125545 is a deficient number, since it is larger than the sum of its proper divisors (24241447).

103125545 is a wasteful number, since it uses less digits than its factorization.

103125545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 103125545 is about 10155.0748397045. The cubic root of 103125545 is about 468.9451899402.

Adding to 103125545 its reverse (545521301), we get a palindrome (648646846).

The spelling of 103125545 in words is "one hundred three million, one hundred twenty-five thousand, five hundred forty-five".