103125045 has 16 divisors (see below), whose sum is σ = 169025472. Its totient is φ = 53658240.

The previous prime is 103125041. The next prime is 103125053. The reversal of 103125045 is 540521301.

It is not a de Polignac number, because 103125045 - 2² = 103125041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103125041) 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, 83227 + ... + 84456.

It is an arithmetic number, because the mean of its divisors is an integer number (10564092).

Almost surely, 2^103125045 is an apocalyptic number.

103125045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103125045 is a deficient number, since it is larger than the sum of its proper divisors (65900427).

103125045 is a wasteful number, since it uses less digits than its factorization.

103125045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167732.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 103125045 is about 10155.0502214415. The cubic root of 103125045 is about 468.9444320518.

Adding to 103125045 its reverse (540521301), we get a palindrome (643646346).

The spelling of 103125045 in words is "one hundred three million, one hundred twenty-five thousand, forty-five".