149209836 has 24 divisors (see below), whose sum is σ = 348411840. Its totient is φ = 49700112.

The previous prime is 149209813. The next prime is 149209861. The reversal of 149209836 is 638902941.

149209836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 16275 + ... + 23733.

It is an arithmetic number, because the mean of its divisors is an integer number (14517160).

Almost surely, 2^149209836 is an apocalyptic number.

It is an amenable number.

149209836 is an abundant number, since it is smaller than the sum of its proper divisors (199202004).

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

149209836 is a wasteful number, since it uses less digits than its factorization.

149209836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133 (or 9131 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 149209836 is about 12215.1478091753. The cubic root of 149209836 is about 530.3946698390.

The spelling of 149209836 in words is "one hundred forty-nine million, two hundred nine thousand, eight hundred thirty-six".