201078 has 12 divisors (see below), whose sum is σ = 435708. Its totient is φ = 67020.

The previous prime is 201073. The next prime is 201101. The reversal of 201078 is 870102.

201078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11171 = 201078 / (2 + 0 + 1 + 0 + 7 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 201078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5568 + ... + 5603.

It is an arithmetic number, because the mean of its divisors is an integer number (36309).

2²⁰¹⁰⁷⁸ is an apocalyptic number.

201078 is an abundant number, since it is smaller than the sum of its proper divisors (234630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201078 is a wasteful number, since it uses less digits than its factorization.

201078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11179 (or 11176 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 201078 is about 448.4172164402. The cubic root of 201078 is about 58.5852362563.

The spelling of 201078 in words is "two hundred one thousand, seventy-eight".