20110045 has 8 divisors (see below), whose sum is σ = 24346296. Its totient is φ = 15945216.

The previous prime is 20110043. The next prime is 20110087. The reversal of 20110045 is 54001102.

It can be written as a sum of positive squares in 4 ways, for example, as 1542564 + 18567481 = 1242^2 + 4309^2 .

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 20110045 - 2¹ = 20110043 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 (20110043) 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, 17232 + ... + 18361.

It is an arithmetic number, because the mean of its divisors is an integer number (3043287).

Almost surely, 2^20110045 is an apocalyptic number.

It is an amenable number.

20110045 is a deficient number, since it is larger than the sum of its proper divisors (4236251).

20110045 is a wasteful number, since it uses less digits than its factorization.

20110045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35711.

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

The square root of 20110045 is about 4484.4224823270. The cubic root of 20110045 is about 271.9386981589.

Adding to 20110045 its reverse (54001102), we get a palindrome (74111147).

It can be divided in two parts, 201 and 10045, that multiplied together give a triangular number (2019045 = T₂₀₀₉).

The spelling of 20110045 in words is "twenty million, one hundred ten thousand, forty-five".