12148549140 has 96 divisors (see below), whose sum is σ = 41865788160. Its totient is φ = 2563209216.

The previous prime is 12148549103. The next prime is 12148549141. The reversal of 12148549140 is 4194584121.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12148549141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1107045 + ... + 1117964.

It is an arithmetic number, because the mean of its divisors is an integer number (436101960).

Almost surely, 2^12148549140 is an apocalyptic number.

12148549140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12148549140 is an abundant number, since it is smaller than the sum of its proper divisors (29717239020).

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

12148549140 is a wasteful number, since it uses less digits than its factorization.

12148549140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225041 (or 2225039 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 12148549140 in words is "twelve billion, one hundred forty-eight million, five hundred forty-nine thousand, one hundred forty".