1152581 has 8 divisors (see below), whose sum is σ = 1192320. Its totient is φ = 1113568.

The previous prime is 1152527. The next prime is 1152589. The reversal of 1152581 is 1852511.

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 1152581 - 2⁶ = 1152517 is a prime.

It is a super-2 number, since 2×1152581² = 2656885923122, 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 (1152589) 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, 6350 + ... + 6528.

It is an arithmetic number, because the mean of its divisors is an integer number (149040).

2^1152581 is an apocalyptic number.

It is an amenable number.

1152581 is a deficient number, since it is larger than the sum of its proper divisors (39739).

1152581 is a wasteful number, since it uses less digits than its factorization.

1152581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 400, while the sum is 23.

The square root of 1152581 is about 1073.5832524774. The cubic root of 1152581 is about 104.8472760790.

The spelling of 1152581 in words is "one million, one hundred fifty-two thousand, five hundred eighty-one".