1115323745 has 16 divisors (see below), whose sum is σ = 1375752000. Its totient is φ = 867392064.

The previous prime is 1115323739. The next prime is 1115323747. The reversal of 1115323745 is 5473235111.

It is a cyclic number.

It is not a de Polignac number, because 1115323745 - 2²² = 1111129441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115323747) 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, 317006 + ... + 320504.

It is an arithmetic number, because the mean of its divisors is an integer number (85984500).

Almost surely, 2^1115323745 is an apocalyptic number.

It is an amenable number.

1115323745 is a deficient number, since it is larger than the sum of its proper divisors (260428255).

1115323745 is a wasteful number, since it uses less digits than its factorization.

1115323745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264.

The product of its digits is 12600, while the sum is 32.

The square root of 1115323745 is about 33396.4630612285. The cubic root of 1115323745 is about 1037.0514811675.

Adding to 1115323745 its reverse (5473235111), we get a palindrome (6588558856).

The spelling of 1115323745 in words is "one billion, one hundred fifteen million, three hundred twenty-three thousand, seven hundred forty-five".