149843686 has 4 divisors (see below), whose sum is σ = 224765532. Its totient is φ = 74921842.

The previous prime is 149843663. The next prime is 149843699. The reversal of 149843686 is 686348941.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 37460920 + ... + 37460923.

It is an arithmetic number, because the mean of its divisors is an integer number (56191383).

Almost surely, 2^149843686 is an apocalyptic number.

149843686 is a deficient number, since it is larger than the sum of its proper divisors (74921846).

149843686 is an equidigital number, since it uses as much as digits as its factorization.

149843686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74921845.

The product of its digits is 995328, while the sum is 49.

The square root of 149843686 is about 12241.0655581939. The cubic root of 149843686 is about 531.1446555411.

The spelling of 149843686 in words is "one hundred forty-nine million, eight hundred forty-three thousand, six hundred eighty-six".