1152889 has 8 divisors (see below), whose sum is σ = 1238760. Its totient is φ = 1069056.

The previous prime is 1152887. The next prime is 1152913. The reversal of 1152889 is 9882511.

It can be written as a sum of positive squares in 4 ways, for example, as 71289 + 1081600 = 267^2 + 1040^2 .

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 1152889 - 2¹ = 1152887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152881) 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, 777 + ... + 1705.

It is an arithmetic number, because the mean of its divisors is an integer number (154845).

2^1152889 is an apocalyptic number.

It is an amenable number.

1152889 is a deficient number, since it is larger than the sum of its proper divisors (85871).

1152889 is an equidigital number, since it uses as much as digits as its factorization.

1152889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019.

The product of its digits is 5760, while the sum is 34.

The square root of 1152889 is about 1073.7266877562. The cubic root of 1152889 is about 104.8566145651.

It can be divided in two parts, 11 and 52889, that added together give a square (52900 = 230²).

The spelling of 1152889 in words is "one million, one hundred fifty-two thousand, eight hundred eighty-nine".