1145134445 has 16 divisors (see below), whose sum is σ = 1691276160. Its totient is φ = 724832064.

The previous prime is 1145134411. The next prime is 1145134493. The reversal of 1145134445 is 5444315411.

1145134445 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1145134445 - 2²⁰ = 1144085869 is a prime.

It is a super-2 number, since 2×1145134445² = 2622665794250916050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257935 + ... + 1258844.

It is an arithmetic number, because the mean of its divisors is an integer number (105704760).

Almost surely, 2^1145134445 is an apocalyptic number.

It is an amenable number.

1145134445 is a deficient number, since it is larger than the sum of its proper divisors (546141715).

1145134445 is a wasteful number, since it uses less digits than its factorization.

1145134445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516804.

The product of its digits is 19200, while the sum is 32.

The square root of 1145134445 is about 33839.8351798587. The cubic root of 1145134445 is about 1046.2099017942.

Adding to 1145134445 its reverse (5444315411), we get a palindrome (6589449856).

The spelling of 1145134445 in words is "one billion, one hundred forty-five million, one hundred thirty-four thousand, four hundred forty-five".