198101236 has 6 divisors (see below), whose sum is σ = 346677170. Its totient is φ = 99050616.

The previous prime is 198101209. The next prime is 198101243. The reversal of 198101236 is 632101891.

It can be written as a sum of positive squares in only one way, i.e., 134420836 + 63680400 = 11594^2 + 7980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 198101198 and 198101207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24762651 + ... + 24762658.

Almost surely, 2^198101236 is an apocalyptic number.

It is an amenable number.

198101236 is a deficient number, since it is larger than the sum of its proper divisors (148575934).

198101236 is a wasteful number, since it uses less digits than its factorization.

198101236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49525313 (or 49525311 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 198101236 is about 14074.8440843940. The cubic root of 198101236 is about 582.9469866974.

The spelling of 198101236 in words is "one hundred ninety-eight million, one hundred one thousand, two hundred thirty-six".