1153887 has 16 divisors (see below), whose sum is σ = 1835520. Its totient is φ = 630432.

The previous prime is 1153871. The next prime is 1153891. The reversal of 1153887 is 7883511.

It is not a de Polignac number, because 1153887 - 2⁴ = 1153871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (114720).

2^1153887 is an apocalyptic number.

1153887 is a deficient number, since it is larger than the sum of its proper divisors (681633).

1153887 is a wasteful number, since it uses less digits than its factorization.

1153887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422.

The product of its digits is 6720, while the sum is 33.

The square root of 1153887 is about 1074.1913237408. The cubic root of 1153887 is about 104.8868622646.

The spelling of 1153887 in words is "one million, one hundred fifty-three thousand, eight hundred eighty-seven".