149439199 has 24 divisors (see below), whose sum is σ = 194157600. Its totient is φ = 111989952.

The previous prime is 149439187. The next prime is 149439209. The reversal of 149439199 is 991934941.

It is a happy number.

149439199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149439199 - 2⁷ = 149439071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149439149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30577 + ... + 35125.

It is an arithmetic number, because the mean of its divisors is an integer number (8089900).

Almost surely, 2^149439199 is an apocalyptic number.

149439199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149439199 is a deficient number, since it is larger than the sum of its proper divisors (44718401).

149439199 is a wasteful number, since it uses less digits than its factorization.

149439199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607 (or 4588 counting only the distinct ones).

The product of its digits is 314928, while the sum is 49.

The square root of 149439199 is about 12224.5326700042. The cubic root of 149439199 is about 530.6663021361. Note that the first 3 decimals are identical.

It can be divided in two parts, 14943 and 9199, that added together give a palindrome (24142).

The spelling of 149439199 in words is "one hundred forty-nine million, four hundred thirty-nine thousand, one hundred ninety-nine".