149798616 has 64 divisors (see below), whose sum is σ = 409639680. Its totient is φ = 45271680.

The previous prime is 149798587. The next prime is 149798629. The reversal of 149798616 is 616897941.

It is a happy number.

149798616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170370 + ... + 171246.

It is an arithmetic number, because the mean of its divisors is an integer number (6400620).

Almost surely, 2^149798616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149798616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204819840).

149798616 is an abundant number, since it is smaller than the sum of its proper divisors (259841064).

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

149798616 is a wasteful number, since it uses less digits than its factorization.

149798616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1540 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 149798616 is about 12239.2244852360. The cubic root of 149798616 is about 531.0913976189.

The spelling of 149798616 in words is "one hundred forty-nine million, seven hundred ninety-eight thousand, six hundred sixteen".