1136855231 has 8 divisors (see below), whose sum is σ = 1160465904. Its totient is φ = 1113405120.

The previous prime is 1136855191. The next prime is 1136855243. The reversal of 1136855231 is 1325586311.

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 1136855231 - 2¹⁴ = 1136838847 is a prime.

It is a super-2 number, since 2×1136855231² = 2584879632504126722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1136855191 and 1136855200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136855131) 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, 25781 + ... + 54206.

It is an arithmetic number, because the mean of its divisors is an integer number (145058238).

Almost surely, 2^1136855231 is an apocalyptic number.

1136855231 is a deficient number, since it is larger than the sum of its proper divisors (23610673).

1136855231 is an equidigital number, since it uses as much as digits as its factorization.

1136855231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80281.

The product of its digits is 21600, while the sum is 35.

The square root of 1136855231 is about 33717.2838615450. The cubic root of 1136855231 is about 1043.6824679746.

The spelling of 1136855231 in words is "one billion, one hundred thirty-six million, eight hundred fifty-five thousand, two hundred thirty-one".