198276137 has 4 divisors (see below), whose sum is σ = 199589376. Its totient is φ = 196962900.

The previous prime is 198276119. The next prime is 198276149. The reversal of 198276137 is 731672891.

198276137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198276137 - 2¹⁴ = 198259753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198276157) 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, 656393 + ... + 656694.

It is an arithmetic number, because the mean of its divisors is an integer number (49897344).

Almost surely, 2^198276137 is an apocalyptic number.

It is an amenable number.

198276137 is a deficient number, since it is larger than the sum of its proper divisors (1313239).

198276137 is a wasteful number, since it uses less digits than its factorization.

198276137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313238.

The product of its digits is 127008, while the sum is 44.

The square root of 198276137 is about 14081.0559618233. The cubic root of 198276137 is about 583.1184949994.

The spelling of 198276137 in words is "one hundred ninety-eight million, two hundred seventy-six thousand, one hundred thirty-seven".