20034145 has 8 divisors (see below), whose sum is σ = 24266304. Its totient is φ = 15877104.

The previous prime is 20034137. The next prime is 20034149. The reversal of 20034145 is 54143002.

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 20034145 - 2³ = 20034137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034149) 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 7 ways as a sum of consecutive naturals, for example, 18189 + ... + 19258.

It is an arithmetic number, because the mean of its divisors is an integer number (3033288).

Almost surely, 2^20034145 is an apocalyptic number.

It is an amenable number.

20034145 is a deficient number, since it is larger than the sum of its proper divisors (4232159).

20034145 is a wasteful number, since it uses less digits than its factorization.

20034145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37559.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20034145 is about 4475.9518540753. The cubic root of 20034145 is about 271.5961468173.

Adding to 20034145 its reverse (54143002), we get a palindrome (74177147).

The spelling of 20034145 in words is "twenty million, thirty-four thousand, one hundred forty-five".