1131105245 has 8 divisors (see below), whose sum is σ = 1428764640. Its totient is φ = 857258640.

The previous prime is 1131105233. The next prime is 1131105301. The reversal of 1131105245 is 5425011311.

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

It is not a de Polignac number, because 1131105245 - 2⁶ = 1131105181 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131105245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5953091 + ... + 5953280.

It is an arithmetic number, because the mean of its divisors is an integer number (178595580).

Almost surely, 2^1131105245 is an apocalyptic number.

It is an amenable number.

1131105245 is a deficient number, since it is larger than the sum of its proper divisors (297659395).

1131105245 is a wasteful number, since it uses less digits than its factorization.

1131105245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11906395.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1131105245 is about 33631.9081379573. The cubic root of 1131105245 is about 1041.9199141345.

Adding to 1131105245 its reverse (5425011311), we get a palindrome (6556116556).

The spelling of 1131105245 in words is "one billion, one hundred thirty-one million, one hundred five thousand, two hundred forty-five".