10120545 has 20 divisors (see below), whose sum is σ = 18142740. Its totient is φ = 5397408.

The previous prime is 10120519. The next prime is 10120549. The reversal of 10120545 is 54502101.

10120545 is a `hidden beast` number, since 1 + 0 + 120 + 545 = 666.

10120545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7834401 + 2286144 = 2799^2 + 1512^2 .

It is not a de Polignac number, because 10120545 - 2⁸ = 10120289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10120549) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12090 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (907137).

Almost surely, 2^10120545 is an apocalyptic number.

10120545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10120545 is a deficient number, since it is larger than the sum of its proper divisors (8022195).

10120545 is an equidigital number, since it uses as much as digits as its factorization.

10120545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25006 (or 24997 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 10120545 is about 3181.2804026052. The cubic root of 10120545 is about 216.3057014008.

Adding to 10120545 its reverse (54502101), we get a palindrome (64622646).

The spelling of 10120545 in words is "ten million, one hundred twenty thousand, five hundred forty-five".