1961178 has 8 divisors (see below), whose sum is σ = 3922368. Its totient is φ = 653724.

The previous prime is 1961173. The next prime is 1961213. The reversal of 1961178 is 8711691.

It is a sphenic number, since it is the product of 3 distinct primes.

1961178 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1961173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163426 + ... + 163437.

It is an arithmetic number, because the mean of its divisors is an integer number (490296).

2^1961178 is an apocalyptic number.

1961178 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1961178 is a wasteful number, since it uses less digits than its factorization.

1961178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326868.

The product of its digits is 3024, while the sum is 33.

The square root of 1961178 is about 1400.4206510902. The cubic root of 1961178 is about 125.1715617581.

The spelling of 1961178 in words is "one million, nine hundred sixty-one thousand, one hundred seventy-eight".