1125187 has 6 divisors (see below), whose sum is σ = 1308948. Its totient is φ = 964404.

The previous prime is 1125169. The next prime is 1125193. The reversal of 1125187 is 7815211.

It is not a de Polignac number, because 1125187 - 2¹⁵ = 1092419 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11433 + ... + 11530.

It is an arithmetic number, because the mean of its divisors is an integer number (218158).

2^1125187 is an apocalyptic number.

1125187 is a deficient number, since it is larger than the sum of its proper divisors (183761).

1125187 is an equidigital number, since it uses as much as digits as its factorization.

1125187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22977 (or 22970 counting only the distinct ones).

The product of its digits is 560, while the sum is 25.

The square root of 1125187 is about 1060.7483207623. The cubic root of 1125187 is about 104.0099534359.

The spelling of 1125187 in words is "one million, one hundred twenty-five thousand, one hundred eighty-seven".