149798194 has 48 divisors (see below), whose sum is σ = 283143168. Its totient is φ = 58913568.

The previous prime is 149798179. The next prime is 149798219. The reversal of 149798194 is 491897941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390927 + ... + 391309.

It is an arithmetic number, because the mean of its divisors is an integer number (5898816).

Almost surely, 2^149798194 is an apocalyptic number.

149798194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

149798194 is a deficient number, since it is larger than the sum of its proper divisors (133344974).

149798194 is a wasteful number, since it uses less digits than its factorization.

149798194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 712 counting only the distinct ones).

The product of its digits is 653184, while the sum is 52.

The square root of 149798194 is about 12239.2072455695. The cubic root of 149798194 is about 531.0908989032.

The spelling of 149798194 in words is "one hundred forty-nine million, seven hundred ninety-eight thousand, one hundred ninety-four".