1151135 has 4 divisors (see below), whose sum is σ = 1381368. Its totient is φ = 920904.

The previous prime is 1151113. The next prime is 1151141. The reversal of 1151135 is 5311511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1151135 - 2⁸ = 1150879 is a prime.

It is a super-2 number, since 2×1151135² = 2650223576450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115109 + ... + 115118.

It is an arithmetic number, because the mean of its divisors is an integer number (345342).

2^1151135 is an apocalyptic number.

1151135 is a deficient number, since it is larger than the sum of its proper divisors (230233).

1151135 is an equidigital number, since it uses as much as digits as its factorization.

1151135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230232.

The product of its digits is 75, while the sum is 17.

The square root of 1151135 is about 1072.9095954460. The cubic root of 1151135 is about 104.8034114520.

Adding to 1151135 its reverse (5311511), we get a palindrome (6462646).

The spelling of 1151135 in words is "one million, one hundred fifty-one thousand, one hundred thirty-five".