2018045 has 8 divisors (see below), whose sum is σ = 2436696. Its totient is φ = 1604416.

The previous prime is 2018041. The next prime is 2018077. The reversal of 2018045 is 5408102.

It can be written as a sum of positive squares in 4 ways, for example, as 432964 + 1585081 = 658^2 + 1259^2 .

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 2018045 - 2² = 2018041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018041) 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, 302 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (304587).

2^2018045 is an apocalyptic number.

It is an amenable number.

2018045 is a deficient number, since it is larger than the sum of its proper divisors (418651).

2018045 is a wasteful number, since it uses less digits than its factorization.

2018045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2018045 is about 1420.5791072658. The cubic root of 2018045 is about 126.3698923177.

The spelling of 2018045 in words is "two million, eighteen thousand, forty-five".