1043113545 has 20 divisors (see below), whose sum is σ = 1869878340. Its totient is φ = 556327008.

The previous prime is 1043113531. The next prime is 1043113559. The reversal of 1043113545 is 5453113401.

It is a happy number.

1043113545 is a `hidden beast` number, since 1 + 0 + 4 + 3 + 113 + 545 = 666.

1043113545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1043113531) and next prime (1043113559).

It can be written as a sum of positive squares in 2 ways, for example, as 604127241 + 438986304 = 24579^2 + 20952^2 .

It is not a de Polignac number, because 1043113545 - 2⁴ = 1043113529 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1287390 + ... + 1288199.

It is an arithmetic number, because the mean of its divisors is an integer number (93493917).

Almost surely, 2^1043113545 is an apocalyptic number.

1043113545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1043113545 is a deficient number, since it is larger than the sum of its proper divisors (826764795).

1043113545 is an equidigital number, since it uses as much as digits as its factorization.

1043113545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575606 (or 2575597 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1043113545 is about 32297.2683829453. The cubic root of 1043113545 is about 1014.1694597914.

Adding to 1043113545 its reverse (5453113401), we get a palindrome (6496226946).

The spelling of 1043113545 in words is "one billion, forty-three million, one hundred thirteen thousand, five hundred forty-five".