10020145 has 4 divisors (see below), whose sum is σ = 12024180. Its totient is φ = 8016112.

The previous prime is 10020137. The next prime is 10020151. The reversal of 10020145 is 54102001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54102001 = 41 ⋅1319561.

It can be written as a sum of positive squares in 2 ways, for example, as 4124961 + 5895184 = 2031^2 + 2428^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020145 - 2³ = 10020137 is a prime.

It is a nialpdrome in base 6.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1002010 + ... + 1002019.

It is an arithmetic number, because the mean of its divisors is an integer number (3006045).

Almost surely, 2^10020145 is an apocalyptic number.

It is an amenable number.

10020145 is a deficient number, since it is larger than the sum of its proper divisors (2004035).

10020145 is an equidigital number, since it uses as much as digits as its factorization.

10020145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004034.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 10020145 is about 3165.4612618069. The cubic root of 10020145 is about 215.5880422551.

Adding to 10020145 its reverse (54102001), we get a palindrome (64122146).

The spelling of 10020145 in words is "ten million, twenty thousand, one hundred forty-five".