12097497140 has 12 divisors (see below), whose sum is σ = 25404744036. Its totient is φ = 4838998848.

The previous prime is 12097497131. The next prime is 12097497169. The reversal of 12097497140 is 4179479021.

It can be written as a sum of positive squares in 2 ways, for example, as 6809880484 + 5287616656 = 82522^2 + 72716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12097497091 and 12097497100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302437409 + ... + 302437448.

It is an arithmetic number, because the mean of its divisors is an integer number (2117062003).

Almost surely, 2^12097497140 is an apocalyptic number.

12097497140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12097497140 is an abundant number, since it is smaller than the sum of its proper divisors (13307246896).

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

12097497140 is a wasteful number, since it uses less digits than its factorization.

12097497140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604874866 (or 604874864 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 12097497140 in words is "twelve billion, ninety-seven million, four hundred ninety-seven thousand, one hundred forty".