198272136 has 16 divisors (see below), whose sum is σ = 495680400. Its totient is φ = 66090704.

The previous prime is 198272131. The next prime is 198272149. The reversal of 198272136 is 631272891.

It is a junction number, because it is equal to n+sod(n) for n = 198272094 and 198272103.

It is not an unprimeable number, because it can be changed into a prime (198272131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4130646 + ... + 4130693.

It is an arithmetic number, because the mean of its divisors is an integer number (30980025).

Almost surely, 2^198272136 is an apocalyptic number.

It is an amenable number.

198272136 is an abundant number, since it is smaller than the sum of its proper divisors (297408264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198272136 is a wasteful number, since it uses less digits than its factorization.

198272136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261348 (or 8261344 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 198272136 is about 14080.9138907956. The cubic root of 198272136 is about 583.1145727375.

The spelling of 198272136 in words is "one hundred ninety-eight million, two hundred seventy-two thousand, one hundred thirty-six".