7142198 has 8 divisors (see below), whose sum is σ = 12243792. Its totient is φ = 3060936.

The previous prime is 7142189. The next prime is 7142203. The reversal of 7142198 is 8912417.

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

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, 255065 + ... + 255092.

It is an arithmetic number, because the mean of its divisors is an integer number (1530474).

Almost surely, 2^7142198 is an apocalyptic number.

7142198 is a deficient number, since it is larger than the sum of its proper divisors (5101594).

7142198 is a wasteful number, since it uses less digits than its factorization.

7142198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510166.

The product of its digits is 4032, while the sum is 32.

The square root of 7142198 is about 2672.4891019422. The cubic root of 7142198 is about 192.5797544377.

The spelling of 7142198 in words is "seven million, one hundred forty-two thousand, one hundred ninety-eight".