1144405132 has 18 divisors (see below), whose sum is σ = 2168615148. Its totient is φ = 528186672.

The previous prime is 1144405121. The next prime is 1144405147. The reversal of 1144405132 is 2315044411.

It is a super-2 number, since 2×1144405132² = 2619326212295874848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144405097 and 1144405106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 845778 + ... + 847129.

Almost surely, 2^1144405132 is an apocalyptic number.

It is an amenable number.

1144405132 is a deficient number, since it is larger than the sum of its proper divisors (1024210016).

1144405132 is a wasteful number, since it uses less digits than its factorization.

1144405132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692937 (or 1692922 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1144405132 is about 33829.0575097800. The cubic root of 1144405132 is about 1045.9877513077.

Adding to 1144405132 its reverse (2315044411), we get a palindrome (3459449543).

The spelling of 1144405132 in words is "one billion, one hundred forty-four million, four hundred five thousand, one hundred thirty-two".