1145321132 has 6 divisors (see below), whose sum is σ = 2004311988. Its totient is φ = 572660564.

The previous prime is 1145321129. The next prime is 1145321143. The reversal of 1145321132 is 2311235411.

It is a super-2 number, since 2×1145321132² = 2623520990811522848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1145321098 and 1145321107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143165138 + ... + 143165145.

It is an arithmetic number, because the mean of its divisors is an integer number (334051998).

Almost surely, 2^1145321132 is an apocalyptic number.

It is an amenable number.

1145321132 is a deficient number, since it is larger than the sum of its proper divisors (858990856).

1145321132 is a wasteful number, since it uses less digits than its factorization.

1145321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286330287 (or 286330285 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 1145321132 is about 33842.5934585398. The cubic root of 1145321132 is about 1046.2667519384.

Adding to 1145321132 its reverse (2311235411), we get a palindrome (3456556543).

The spelling of 1145321132 in words is "one billion, one hundred forty-five million, three hundred twenty-one thousand, one hundred thirty-two".