12139015145198 has 4 divisors (see below), whose sum is σ = 18208522717800. Its totient is φ = 6069507572598.

The previous prime is 12139015145189. The next prime is 12139015145233. The reversal of 12139015145198 is 89154151093121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3034753786298 + ... + 3034753786301.

It is an arithmetic number, because the mean of its divisors is an integer number (4552130679450).

Almost surely, 2^{12139015145198} is an apocalyptic number.

12139015145198 is a deficient number, since it is larger than the sum of its proper divisors (6069507572602).

12139015145198 is an equidigital number, since it uses as much as digits as its factorization.

12139015145198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6069507572601.

The product of its (nonzero) digits is 388800, while the sum is 50.

The spelling of 12139015145198 in words is "twelve trillion, one hundred thirty-nine billion, fifteen million, one hundred forty-five thousand, one hundred ninety-eight".