149020198 has 16 divisors (see below), whose sum is σ = 242185680. Its totient is φ = 68495616.

The previous prime is 149020189. The next prime is 149020217. The reversal of 149020198 is 891020941.

149020198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49503 + ... + 52426.

It is an arithmetic number, because the mean of its divisors is an integer number (15136605).

Almost surely, 2^149020198 is an apocalyptic number.

149020198 is a deficient number, since it is larger than the sum of its proper divisors (93165482).

149020198 is a wasteful number, since it uses less digits than its factorization.

149020198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101991.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 149020198 is about 12207.3829300141. The cubic root of 149020198 is about 530.1698731608.

The spelling of 149020198 in words is "one hundred forty-nine million, twenty thousand, one hundred ninety-eight".