149749586 has 24 divisors (see below), whose sum is σ = 261975420. Its totient is φ = 64012032.

The previous prime is 149749577. The next prime is 149749597. The reversal of 149749586 is 685947941.

149749586 is digitally balanced in base 3, 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 2 ways, for example, as 120318961 + 29430625 = 10969^2 + 5425^2 .

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 11 ways as a sum of consecutive naturals, for example, 40670 + ... + 44198.

Almost surely, 2^149749586 is an apocalyptic number.

149749586 is a deficient number, since it is larger than the sum of its proper divisors (112225834).

149749586 is a wasteful number, since it uses less digits than its factorization.

149749586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978 (or 3971 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 149749586 is about 12237.2213349273. The cubic root of 149749586 is about 531.0334481456.

The spelling of 149749586 in words is "one hundred forty-nine million, seven hundred forty-nine thousand, five hundred eighty-six".