20145007 has 8 divisors (see below), whose sum is σ = 20558384. Its totient is φ = 19735488.

The previous prime is 20144989. The next prime is 20145029. The reversal of 20145007 is 70054102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20145007 - 2¹¹ = 20142959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11053 + ... + 12745.

It is an arithmetic number, because the mean of its divisors is an integer number (2569798).

Almost surely, 2^20145007 is an apocalyptic number.

20145007 is a deficient number, since it is larger than the sum of its proper divisors (413377).

20145007 is a wasteful number, since it uses less digits than its factorization.

20145007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20145007 is about 4488.3189503421. The cubic root of 20145007 is about 272.0961984921.

Adding to 20145007 its reverse (70054102), we get a palindrome (90199109).

It can be divided in two parts, 2014 and 5007, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 20145007 in words is "twenty million, one hundred forty-five thousand, seven".