1111543045 has 8 divisors (see below), whose sum is σ = 1412313624. Its totient is φ = 836926464.

The previous prime is 1111543039. The next prime is 1111543049. The reversal of 1111543045 is 5403451111.

It can be written as a sum of positive squares in 4 ways, for example, as 628906084 + 482636961 = 25078^2 + 21969^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111543045 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111543049) 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, 6538404 + ... + 6538573.

It is an arithmetic number, because the mean of its divisors is an integer number (176539203).

Almost surely, 2^1111543045 is an apocalyptic number.

It is an amenable number.

1111543045 is a deficient number, since it is larger than the sum of its proper divisors (300770579).

1111543045 is a wasteful number, since it uses less digits than its factorization.

1111543045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13076999.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1111543045 is about 33339.8117121258. The cubic root of 1111543045 is about 1035.8783631658.

Adding to 1111543045 its reverse (5403451111), we get a palindrome (6514994156).

The spelling of 1111543045 in words is "one billion, one hundred eleven million, five hundred forty-three thousand, forty-five".