1123531634 has 4 divisors (see below), whose sum is σ = 1685297454. Its totient is φ = 561765816.

The previous prime is 1123531621. The next prime is 1123531679. The reversal of 1123531634 is 4361353211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1070925625 + 52606009 = 32725^2 + 7253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1123531597 and 1123531606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280882907 + ... + 280882910.

Almost surely, 2^1123531634 is an apocalyptic number.

1123531634 is a deficient number, since it is larger than the sum of its proper divisors (561765820).

1123531634 is an equidigital number, since it uses as much as digits as its factorization.

1123531634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561765819.

The product of its digits is 6480, while the sum is 29.

The square root of 1123531634 is about 33519.1234073924. The cubic root of 1123531634 is about 1039.5892220183.

Adding to 1123531634 its reverse (4361353211), we get a palindrome (5484884845).

The spelling of 1123531634 in words is "one billion, one hundred twenty-three million, five hundred thirty-one thousand, six hundred thirty-four".