198930142 has 8 divisors (see below), whose sum is σ = 298571832. Its totient is φ = 99406200.

The previous prime is 198930139. The next prime is 198930161. The reversal of 198930142 is 241039891.

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

It is a super-2 number, since 2×198930142² = 79146402792280328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25084 + ... + 32047.

It is an arithmetic number, because the mean of its divisors is an integer number (37321479).

Almost surely, 2^198930142 is an apocalyptic number.

198930142 is a deficient number, since it is larger than the sum of its proper divisors (99641690).

198930142 is a wasteful number, since it uses less digits than its factorization.

198930142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58874.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 198930142 is about 14104.2597111653. The cubic root of 198930142 is about 583.7589214966.

It can be divided in two parts, 1989 and 30142, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 198930142 in words is "one hundred ninety-eight million, nine hundred thirty thousand, one hundred forty-two".