1122163540 has 48 divisors (see below), whose sum is σ = 2548288512. Its totient is φ = 413467136.

The previous prime is 1122163529. The next prime is 1122163571. The reversal of 1122163540 is 453612211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19132 + ... + 51091.

It is an arithmetic number, because the mean of its divisors is an integer number (53089344).

Almost surely, 2^1122163540 is an apocalyptic number.

1122163540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122163540 is an abundant number, since it is smaller than the sum of its proper divisors (1426124972).

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

1122163540 is a wasteful number, since it uses less digits than its factorization.

1122163540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70296 (or 70294 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1122163540 is about 33498.7095273833. The cubic root of 1122163540 is about 1039.1670907655.

Adding to 1122163540 its reverse (453612211), we get a palindrome (1575775751).

The spelling of 1122163540 in words is "one billion, one hundred twenty-two million, one hundred sixty-three thousand, five hundred forty".