1131308 has 6 divisors (see below), whose sum is σ = 1979796. Its totient is φ = 565652.

The previous prime is 1131307. The next prime is 1131323. The reversal of 1131308 is 8031311.

It is not an unprimeable number, because it can be changed into a prime (1131307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141410 + ... + 141417.

It is an arithmetic number, because the mean of its divisors is an integer number (329966).

2^1131308 is an apocalyptic number.

It is an amenable number.

1131308 is a deficient number, since it is larger than the sum of its proper divisors (848488).

1131308 is a wasteful number, since it uses less digits than its factorization.

1131308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282831 (or 282829 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1131308 is about 1063.6296347884. The cubic root of 1131308 is about 104.1982166476.

Adding to 1131308 its reverse (8031311), we get a palindrome (9162619).

The spelling of 1131308 in words is "one million, one hundred thirty-one thousand, three hundred eight".