1120145543 has 8 divisors (see below), whose sum is σ = 1251781776. Its totient is φ = 993476800.

The previous prime is 1120145531. The next prime is 1120145557. The reversal of 1120145543 is 3455410211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1120145543 - 2⁴ = 1120145527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120145843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241396 + ... + 1242297.

It is an arithmetic number, because the mean of its divisors is an integer number (156472722).

Almost surely, 2^1120145543 is an apocalyptic number.

1120145543 is a deficient number, since it is larger than the sum of its proper divisors (131636233).

1120145543 is a wasteful number, since it uses less digits than its factorization.

1120145543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483745.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1120145543 is about 33468.5754551938. The cubic root of 1120145543 is about 1038.5438024200.

Adding to 1120145543 its reverse (3455410211), we get a palindrome (4575555754).

The spelling of 1120145543 in words is "one billion, one hundred twenty million, one hundred forty-five thousand, five hundred forty-three".