198609144102131 has 24 divisors (see below), whose sum is σ = 237292402608576. Its totient is φ = 165626292343680.

The previous prime is 198609144102029. The next prime is 198609144102133. The reversal of 198609144102131 is 131201441906891.

It is not a de Polignac number, because 198609144102131 - 2³⁴ = 198591964232947 is a prime.

It is a super-2 number, since 2×198609144102131² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198609144102131.

It is not an unprimeable number, because it can be changed into a prime (198609144102133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29969255 + ... + 35991311.

It is an arithmetic number, because the mean of its divisors is an integer number (9887183442024).

Almost surely, 2^{198609144102131} is an apocalyptic number.

198609144102131 is a deficient number, since it is larger than the sum of its proper divisors (38683258506445).

198609144102131 is a wasteful number, since it uses less digits than its factorization.

198609144102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040299 (or 6040292 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 198609144102131 in words is "one hundred ninety-eight trillion, six hundred nine billion, one hundred forty-four million, one hundred two thousand, one hundred thirty-one".