149784636 has 24 divisors (see below), whose sum is σ = 349695360. Its totient is φ = 49899952.

The previous prime is 149784631. The next prime is 149784647. The reversal of 149784636 is 636487941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149784631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40555 + ... + 44093.

It is an arithmetic number, because the mean of its divisors is an integer number (14570640).

Almost surely, 2^149784636 is an apocalyptic number.

It is an amenable number.

149784636 is an abundant number, since it is smaller than the sum of its proper divisors (199910724).

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

149784636 is a wasteful number, since it uses less digits than its factorization.

149784636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7073 (or 7071 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 149784636 is about 12238.6533572938. The cubic root of 149784636 is about 531.0748756845.

The spelling of 149784636 in words is "one hundred forty-nine million, seven hundred eighty-four thousand, six hundred thirty-six".