198055031 has 8 divisors (see below), whose sum is σ = 208656000. Its totient is φ = 187471800.

The previous prime is 198055027. The next prime is 198055037. The reversal of 198055031 is 130550891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198055031 - 2² = 198055027 is a prime.

It is a super-2 number, since 2×198055031² = 78451590608821922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198055037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22856 + ... + 30306.

It is an arithmetic number, because the mean of its divisors is an integer number (26082000).

Almost surely, 2^198055031 is an apocalyptic number.

198055031 is a deficient number, since it is larger than the sum of its proper divisors (10600969).

198055031 is a wasteful number, since it uses less digits than its factorization.

198055031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 198055031 is about 14073.2025850550. The cubic root of 198055031 is about 582.9016611180.

The spelling of 198055031 in words is "one hundred ninety-eight million, fifty-five thousand, thirty-one".