12139015145197 has 8 divisors (see below), whose sum is σ = 12174001427000. Its totient is φ = 12104030029824.

The previous prime is 12139015145189. The next prime is 12139015145233. The reversal of 12139015145197 is 79154151093121.

It can be written as a sum of positive squares in 4 ways, for example, as 488630358441 + 11650384786756 = 699021^2 + 3413266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12139015145197 - 2³ = 12139015145189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12139015145197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139015145167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23295973 + ... + 23811349.

It is an arithmetic number, because the mean of its divisors is an integer number (1521750178375).

Almost surely, 2^{12139015145197} is an apocalyptic number.

It is an amenable number.

12139015145197 is a deficient number, since it is larger than the sum of its proper divisors (34986281803).

12139015145197 is an equidigital number, since it uses as much as digits as its factorization.

12139015145197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583215.

The product of its (nonzero) digits is 340200, while the sum is 49.

The spelling of 12139015145197 in words is "twelve trillion, one hundred thirty-nine billion, fifteen million, one hundred forty-five thousand, one hundred ninety-seven".