1123149660 has 48 divisors (see below), whose sum is σ = 3310339200. Its totient is φ = 283742784.

The previous prime is 1123149619. The next prime is 1123149661. The reversal of 1123149660 is 669413211.

It is a super-2 number, since 2×1123149660² = 2522930317516231200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123149661) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 491470 + ... + 493749.

It is an arithmetic number, because the mean of its divisors is an integer number (68965400).

Almost surely, 2^1123149660 is an apocalyptic number.

1123149660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123149660 is an abundant number, since it is smaller than the sum of its proper divisors (2187189540).

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

1123149660 is a wasteful number, since it uses less digits than its factorization.

1123149660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985250 (or 985248 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1123149660 is about 33513.4250711562. The cubic root of 1123149660 is about 1039.4713968051.

The spelling of 1123149660 in words is "one billion, one hundred twenty-three million, one hundred forty-nine thousand, six hundred sixty".