149071198 has 8 divisors (see below), whose sum is σ = 236760192. Its totient is φ = 70151136.

The previous prime is 149071193. The next prime is 149071201. The reversal of 149071198 is 891170941.

149071198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 149071198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149071193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2192190 + ... + 2192257.

It is an arithmetic number, because the mean of its divisors is an integer number (29595024).

Almost surely, 2^149071198 is an apocalyptic number.

149071198 is a deficient number, since it is larger than the sum of its proper divisors (87688994).

149071198 is a wasteful number, since it uses less digits than its factorization.

149071198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384466.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 149071198 is about 12209.4716511404. The cubic root of 149071198 is about 530.2303472441.

The spelling of 149071198 in words is "one hundred forty-nine million, seventy-one thousand, one hundred ninety-eight".