2018147 has 4 divisors (see below), whose sum is σ = 2033016. Its totient is φ = 2003280.

The previous prime is 2018117. The next prime is 2018153. The reversal of 2018147 is 7418102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2018147 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 (2018117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7229 + ... + 7502.

It is an arithmetic number, because the mean of its divisors is an integer number (508254).

2^2018147 is an apocalyptic number.

2018147 is a deficient number, since it is larger than the sum of its proper divisors (14869).

2018147 is a wasteful number, since it uses less digits than its factorization.

2018147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2018147 is about 1420.6150076639. The cubic root of 2018147 is about 126.3720213604.

The spelling of 2018147 in words is "two million, eighteen thousand, one hundred forty-seven".