198142825 has 12 divisors (see below), whose sum is σ = 246265488. Its totient is φ = 158147600.

The previous prime is 198142799. The next prime is 198142883. The reversal of 198142825 is 528241891.

It is not a de Polignac number, because 198142825 - 2²⁷ = 63925097 is a prime.

It is a super-3 number, since 3×198142825³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2130 + ... + 20020.

It is an arithmetic number, because the mean of its divisors is an integer number (20522124).

Almost surely, 2^198142825 is an apocalyptic number.

It is an amenable number.

198142825 is a deficient number, since it is larger than the sum of its proper divisors (48122663).

198142825 is a wasteful number, since it uses less digits than its factorization.

198142825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18344 (or 18339 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 198142825 is about 14076.3214299759. The cubic root of 198142825 is about 582.9877781067.

The spelling of 198142825 in words is "one hundred ninety-eight million, one hundred forty-two thousand, eight hundred twenty-five".