1131688255 has 8 divisors (see below), whose sum is σ = 1358502912. Its totient is φ = 905032608.

The previous prime is 1131688219. The next prime is 1131688301. The reversal of 1131688255 is 5528861311.

It is a happy number.

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 1131688255 - 2⁹ = 1131687743 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 23487 + ... + 53056.

It is an arithmetic number, because the mean of its divisors is an integer number (169812864).

Almost surely, 2^1131688255 is an apocalyptic number.

1131688255 is a deficient number, since it is larger than the sum of its proper divisors (226814657).

1131688255 is an equidigital number, since it uses as much as digits as its factorization.

1131688255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79505.

The product of its digits is 57600, while the sum is 40.

The square root of 1131688255 is about 33640.5745343328. The cubic root of 1131688255 is about 1042.0988970055.

The spelling of 1131688255 in words is "one billion, one hundred thirty-one million, six hundred eighty-eight thousand, two hundred fifty-five".