149112198 has 32 divisors (see below), whose sum is σ = 333573120. Its totient is φ = 49372200.

The previous prime is 149112193. The next prime is 149112217. The reversal of 149112198 is 891211941.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149112193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990 + ... + 17297.

It is an arithmetic number, because the mean of its divisors is an integer number (10424160).

Almost surely, 2^149112198 is an apocalyptic number.

149112198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149112198 is an abundant number, since it is smaller than the sum of its proper divisors (184460922).

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

149112198 is a wasteful number, since it uses less digits than its factorization.

149112198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18449 (or 18443 counting only the distinct ones).

The product of its digits is 5184, while the sum is 36.

The square root of 149112198 is about 12211.1505600414. The cubic root of 149112198 is about 530.2789536635.

It can be divided in two parts, 1491 and 12198, that added together give a square (13689 = 117²).

The spelling of 149112198 in words is "one hundred forty-nine million, one hundred twelve thousand, one hundred ninety-eight".