149806194 has 16 divisors (see below), whose sum is σ = 301598400. Its totient is φ = 49604400.

The previous prime is 149806183. The next prime is 149806201. The reversal of 149806194 is 491608941.

149806194 = 165² + 166² + ... + 768².

It is a Curzon 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, 81769 + ... + 83580.

It is an arithmetic number, because the mean of its divisors is an integer number (18849900).

Almost surely, 2^149806194 is an apocalyptic number.

149806194 is an abundant number, since it is smaller than the sum of its proper divisors (151792206).

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

149806194 is a wasteful number, since it uses less digits than its factorization.

149806194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165505.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 149806194 is about 12239.5340597590. The cubic root of 149806194 is about 531.1003530705.

The spelling of 149806194 in words is "one hundred forty-nine million, eight hundred six thousand, one hundred ninety-four".