198729325 has 12 divisors (see below), whose sum is σ = 247141300. Its totient is φ = 158520960.

The previous prime is 198729299. The next prime is 198729343. The reversal of 198729325 is 523927891.

It can be written as a sum of positive squares in 6 ways, for example, as 8868484 + 189860841 = 2978^2 + 13779^2 .

It is not a de Polignac number, because 198729325 - 2¹⁵ = 198696557 is a prime.

It is a super-2 number, since 2×198729325² = 78986689229911250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2664 + ... + 20113.

Almost surely, 2^198729325 is an apocalyptic number.

It is an amenable number.

198729325 is a deficient number, since it is larger than the sum of its proper divisors (48411975).

198729325 is a wasteful number, since it uses less digits than its factorization.

198729325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23136 (or 23131 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 198729325 is about 14097.1388941161. The cubic root of 198729325 is about 583.5624233973.

The spelling of 198729325 in words is "one hundred ninety-eight million, seven hundred twenty-nine thousand, three hundred twenty-five".