149434218 has 12 divisors (see below), whose sum is σ = 323774178. Its totient is φ = 49811400.

The previous prime is 149434211. The next prime is 149434249. The reversal of 149434218 is 812434941.

It is a happy number.

149434218 is a `hidden beast` number, since 1 + 4 + 9 + 434 + 218 = 666.

149434218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 85322169 + 64112049 = 9237^2 + 8007^2 .

It is not an unprimeable number, because it can be changed into a prime (149434211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4150933 + ... + 4150968.

Almost surely, 2^149434218 is an apocalyptic number.

149434218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

149434218 is an abundant number, since it is smaller than the sum of its proper divisors (174339960).

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

149434218 is a wasteful number, since it uses less digits than its factorization.

149434218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301909 (or 8301906 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 149434218 is about 12224.3289386371. The cubic root of 149434218 is about 530.6604061413.

The spelling of 149434218 in words is "one hundred forty-nine million, four hundred thirty-four thousand, two hundred eighteen".