1125587 has 8 divisors (see below), whose sum is σ = 1209456. Its totient is φ = 1043712.

The previous prime is 1125581. The next prime is 1125599. The reversal of 1125587 is 7855211.

1125587 is nontrivially palindromic in base 9.

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 1125587 - 2⁴ = 1125571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125581) 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, 788 + ... + 1694.

It is an arithmetic number, because the mean of its divisors is an integer number (151182).

2^1125587 is an apocalyptic number.

1125587 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1125587 is a deficient number, since it is larger than the sum of its proper divisors (83869).

1125587 is an equidigital number, since it uses as much as digits as its factorization.

1125587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its digits is 2800, while the sum is 29.

The square root of 1125587 is about 1060.9368501471. The cubic root of 1125587 is about 104.0222770326.

The spelling of 1125587 in words is "one million, one hundred twenty-five thousand, five hundred eighty-seven".