7149198 has 24 divisors (see below), whose sum is σ = 16633512. Its totient is φ = 2042544.

The previous prime is 7149193. The next prime is 7149209. The reversal of 7149198 is 8919417.

It is a happy number.

It is a super-2 number, since 2×7149198² = 102222064086408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11865 + ... + 12452.

It is an arithmetic number, because the mean of its divisors is an integer number (693063).

Almost surely, 2^7149198 is an apocalyptic number.

7149198 is an abundant number, since it is smaller than the sum of its proper divisors (9484314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7149198 is a wasteful number, since it uses less digits than its factorization.

7149198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24336 (or 24329 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 7149198 is about 2673.7984217214. The cubic root of 7149198 is about 192.6426490870.

The spelling of 7149198 in words is "seven million, one hundred forty-nine thousand, one hundred ninety-eight".