1135231 has 8 divisors (see below), whose sum is σ = 1206000. Its totient is φ = 1065600.

The previous prime is 1135229. The next prime is 1135237. The reversal of 1135231 is 1325311.

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 1135231 - 2¹ = 1135229 is a prime.

It is a super-2 number, since 2×1135231² = 2577498846722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135237) 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, 2631 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (150750).

2^1135231 is an apocalyptic number.

1135231 is a deficient number, since it is larger than the sum of its proper divisors (70769).

1135231 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (1135230) it forms an eRAP, since the sums of their prime factors are consecutive (568 and 569).

1135231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 90, while the sum is 16.

The square root of 1135231 is about 1065.4721957893. The cubic root of 1135231 is about 104.3185192884.

The spelling of 1135231 in words is "one million, one hundred thirty-five thousand, two hundred thirty-one".