1148581 has 16 divisors (see below), whose sum is σ = 1392640. Its totient is φ = 926640.

The previous prime is 1148561. The next prime is 1148593. The reversal of 1148581 is 1858411.

It is a cyclic number.

It is not a de Polignac number, because 1148581 - 2⁵ = 1148549 is a prime.

It is a super-2 number, since 2×1148581² = 2638476627122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14500 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (87040).

2^1148581 is an apocalyptic number.

It is an amenable number.

1148581 is a deficient number, since it is larger than the sum of its proper divisors (244059).

1148581 is an equidigital number, since it uses as much as digits as its factorization.

1148581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184.

The product of its digits is 1280, while the sum is 28.

The square root of 1148581 is about 1071.7187130959. The cubic root of 1148581 is about 104.7258456543.

The spelling of 1148581 in words is "one million, one hundred forty-eight thousand, five hundred eighty-one".