1136641 has 8 divisors (see below), whose sum is σ = 1248768. Its totient is φ = 1026000.

The previous prime is 1136633. The next prime is 1136647. The reversal of 1136641 is 1466311.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1136641 - 2³ = 1136633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136647) 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, 1831 + ... + 2371.

It is an arithmetic number, because the mean of its divisors is an integer number (156096).

It is a Proth number, since it is equal to 555 ⋅ 2¹¹ + 1 and 555 < 2¹¹.

2^1136641 is an apocalyptic number.

1136641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1136641 is a deficient number, since it is larger than the sum of its proper divisors (112127).

1136641 is a wasteful number, since it uses less digits than its factorization.

1136641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its digits is 432, while the sum is 22.

The square root of 1136641 is about 1066.1336689177. The cubic root of 1136641 is about 104.3616906069.

The spelling of 1136641 in words is "one million, one hundred thirty-six thousand, six hundred forty-one".