1617112198 has 32 divisors (see below), whose sum is σ = 2744280000. Its totient is φ = 709078656.

The previous prime is 1617112193. The next prime is 1617112213. The reversal of 1617112198 is 8912117161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617112193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80028 + ... + 98176.

It is an arithmetic number, because the mean of its divisors is an integer number (85758750).

Almost surely, 2^1617112198 is an apocalyptic number.

1617112198 is a deficient number, since it is larger than the sum of its proper divisors (1127167802).

1617112198 is a wasteful number, since it uses less digits than its factorization.

1617112198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18336.

The product of its digits is 6048, while the sum is 37.

The square root of 1617112198 is about 40213.3335847701. Note that the first 3 decimals coincide. The cubic root of 1617112198 is about 1173.7620153823.

The spelling of 1617112198 in words is "one billion, six hundred seventeen million, one hundred twelve thousand, one hundred ninety-eight".