149774218 has 8 divisors (see below), whose sum is σ = 245085120. Its totient is φ = 68079180.

The previous prime is 149774201. The next prime is 149774221. The reversal of 149774218 is 812477941.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403938 + ... + 3403981.

It is an arithmetic number, because the mean of its divisors is an integer number (30635640).

Almost surely, 2^149774218 is an apocalyptic number.

149774218 is a deficient number, since it is larger than the sum of its proper divisors (95310902).

149774218 is a wasteful number, since it uses less digits than its factorization.

149774218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807932.

The product of its digits is 112896, while the sum is 43.

The square root of 149774218 is about 12238.2277311709. The cubic root of 149774218 is about 531.0625627476.

The spelling of 149774218 in words is "one hundred forty-nine million, seven hundred seventy-four thousand, two hundred eighteen".