198026129 has 8 divisors (see below), whose sum is σ = 226585920. Its totient is φ = 169533936.

The previous prime is 198026119. The next prime is 198026161. The reversal of 198026129 is 921620891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198026129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198026092 and 198026101.

It is not an unprimeable number, because it can be changed into a prime (198026119) 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, 10454 + ... + 22479.

It is an arithmetic number, because the mean of its divisors is an integer number (28323240).

Almost surely, 2^198026129 is an apocalyptic number.

It is an amenable number.

198026129 is a deficient number, since it is larger than the sum of its proper divisors (28559791).

198026129 is an equidigital number, since it uses as much as digits as its factorization.

198026129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33799.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 198026129 is about 14072.1757024278. The cubic root of 198026129 is about 582.8733056263.

The spelling of 198026129 in words is "one hundred ninety-eight million, twenty-six thousand, one hundred twenty-nine".