1186401 has 8 divisors (see below), whose sum is σ = 1633024. Its totient is φ = 765360.

The previous prime is 1186397. The next prime is 1186403. The reversal of 1186401 is 1046811.

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

It is not a de Polignac number, because 1186401 - 2² = 1186397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1186403) 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, 6286 + ... + 6471.

It is an arithmetic number, because the mean of its divisors is an integer number (204128).

2^1186401 is an apocalyptic number.

It is an amenable number.

1186401 is a deficient number, since it is larger than the sum of its proper divisors (446623).

1186401 is a wasteful number, since it uses less digits than its factorization.

1186401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1186401 is about 1089.2203633792. The cubic root of 1186401 is about 105.8629116630.

The spelling of 1186401 in words is "one million, one hundred eighty-six thousand, four hundred one".