1145134044 has 48 divisors (see below), whose sum is σ = 2973196800. Its totient is φ = 381154608.

The previous prime is 1145134043. The next prime is 1145134069. The reversal of 1145134044 is 4404315411.

It is a super-2 number, since 2×1145134044² = 2622663957455587872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1145133999 and 1145134017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145134043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70279 + ... + 85025.

It is an arithmetic number, because the mean of its divisors is an integer number (61941600).

Almost surely, 2^1145134044 is an apocalyptic number.

It is an amenable number.

1145134044 is an abundant number, since it is smaller than the sum of its proper divisors (1828062756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145134044 is a wasteful number, since it uses less digits than its factorization.

1145134044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15479 (or 15471 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1145134044 is about 33839.8292548884. The cubic root of 1145134044 is about 1046.2097796745.

Adding to 1145134044 its reverse (4404315411), we get a palindrome (5549449455).

The spelling of 1145134044 in words is "one billion, one hundred forty-five million, one hundred thirty-four thousand, forty-four".