201178 has 16 divisors (see below), whose sum is σ = 328104. Its totient is φ = 92160.

The previous prime is 201167. The next prime is 201193. The reversal of 201178 is 871102.

201178 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 142129 + 59049 = 377^2 + 243^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026 + ... + 2122.

2²⁰¹¹⁷⁸ is an apocalyptic number.

201178 is a deficient number, since it is larger than the sum of its proper divisors (126926).

201178 is a wasteful number, since it uses less digits than its factorization.

201178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 201178 is about 448.5287058818. The cubic root of 201178 is about 58.5949465059.

It can be divided in two parts, 201 and 178, that multiplied together give a triangular number (35778 = T₂₆₇).

The spelling of 201178 in words is "two hundred one thousand, one hundred seventy-eight".