1121187 has 8 divisors (see below), whose sum is σ = 1499904. Its totient is φ = 744968.

The previous prime is 1121179. The next prime is 1121189. The reversal of 1121187 is 7811211.

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 1121187 - 2³ = 1121179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121189) 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, 1138 + ... + 1880.

It is an arithmetic number, because the mean of its divisors is an integer number (187488).

2^1121187 is an apocalyptic number.

1121187 is a deficient number, since it is larger than the sum of its proper divisors (378717).

1121187 is an equidigital number, since it uses as much as digits as its factorization.

1121187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its digits is 112, while the sum is 21.

The square root of 1121187 is about 1058.8611807031. The cubic root of 1121187 is about 103.8865565274.

Adding to 1121187 its reverse (7811211), we get a palindrome (8932398).

The spelling of 1121187 in words is "one million, one hundred twenty-one thousand, one hundred eighty-seven".