1121635006 has 4 divisors (see below), whose sum is σ = 1682452512. Its totient is φ = 560817502.

The previous prime is 1121634989. The next prime is 1121635079. The reversal of 1121635006 is 6005361211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280408750 + ... + 280408753.

It is an arithmetic number, because the mean of its divisors is an integer number (420613128).

Almost surely, 2^1121635006 is an apocalyptic number.

1121635006 is a deficient number, since it is larger than the sum of its proper divisors (560817506).

1121635006 is an equidigital number, since it uses as much as digits as its factorization.

1121635006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560817505.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1121635006 is about 33490.8197272029. The cubic root of 1121635006 is about 1039.0039174634.

Adding to 1121635006 its reverse (6005361211), we get a palindrome (7126996217).

The spelling of 1121635006 in words is "one billion, one hundred twenty-one million, six hundred thirty-five thousand, six".