1136661 has 8 divisors (see below), whose sum is σ = 1530144. Its totient is φ = 750480.

The previous prime is 1136659. The next prime is 1136669. The reversal of 1136661 is 1666311.

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

It is not a de Polignac number, because 1136661 - 2¹ = 1136659 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136669) 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, 1450 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

2^1136661 is an apocalyptic number.

It is an amenable number.

1136661 is a deficient number, since it is larger than the sum of its proper divisors (393483).

1136661 is a wasteful number, since it uses less digits than its factorization.

1136661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651.

The product of its digits is 648, while the sum is 24.

The square root of 1136661 is about 1066.1430485634. The cubic root of 1136661 is about 104.3623027092.

The spelling of 1136661 in words is "one million, one hundred thirty-six thousand, six hundred sixty-one".