1131689068 has 12 divisors (see below), whose sum is σ = 1982772792. Its totient is φ = 565182560.

The previous prime is 1131689063. The next prime is 1131689071. The reversal of 1131689068 is 8609861311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1131689063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161638 + ... + 168493.

It is an arithmetic number, because the mean of its divisors is an integer number (165231066).

Almost surely, 2^1131689068 is an apocalyptic number.

It is an amenable number.

1131689068 is a deficient number, since it is larger than the sum of its proper divisors (851083724).

1131689068 is a wasteful number, since it uses less digits than its factorization.

1131689068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330992 (or 330990 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 1131689068 is about 33640.5866179530. The cubic root of 1131689068 is about 1042.0991465519.

The spelling of 1131689068 in words is "one billion, one hundred thirty-one million, six hundred eighty-nine thousand, sixty-eight".