1159641 has 24 divisors (see below), whose sum is σ = 1946880. Its totient is φ = 651456.

The previous prime is 1159633. The next prime is 1159649. The reversal of 1159641 is 1469511.

1159641 is a `hidden beast` number, since 1 + 15 + 9 + 641 = 666.

It is an interprime number because it is at equal distance from previous prime (1159633) and next prime (1159649).

It is not a de Polignac number, because 1159641 - 2³ = 1159633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1159649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4861 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (81120).

2^1159641 is an apocalyptic number.

It is an amenable number.

1159641 is a deficient number, since it is larger than the sum of its proper divisors (787239).

1159641 is a wasteful number, since it uses less digits than its factorization.

1159641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 322 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1159641 is about 1076.8662869642. The cubic root of 1159641 is about 105.0609170324.

The spelling of 1159641 in words is "one million, one hundred fifty-nine thousand, six hundred forty-one".