1131905034 has 24 divisors (see below), whose sum is σ = 2641112292. Its totient is φ = 348278400.

The previous prime is 1131905023. The next prime is 1131905041. The reversal of 1131905034 is 4305091311.

It can be written as a sum of positive squares in 2 ways, for example, as 1095941025 + 35964009 = 33105^2 + 5997^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1131904989 and 1131905007.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2418367 + ... + 2418834.

Almost surely, 2^1131905034 is an apocalyptic number.

1131905034 is an abundant number, since it is smaller than the sum of its proper divisors (1509207258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131905034 is a wasteful number, since it uses less digits than its factorization.

1131905034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837222 (or 4837219 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1131905034 is about 33643.7963672354. The cubic root of 1131905034 is about 1042.1654320349.

Adding to 1131905034 its reverse (4305091311), we get a palindrome (5436996345).

The spelling of 1131905034 in words is "one billion, one hundred thirty-one million, nine hundred five thousand, thirty-four".