149786 has 16 divisors (see below), whose sum is σ = 276864. Its totient is φ = 59184.

The previous prime is 149771. The next prime is 149791. The reversal of 149786 is 687941.

It is a nialpdrome in base 8.

It is an unprimeable number.

149786 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (17304).

2¹⁴⁹⁷⁸⁶ is an apocalyptic number.

149786 is a deficient number, since it is larger than the sum of its proper divisors (127078).

149786 is a wasteful number, since it uses less digits than its factorization.

149786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its digits is 12096, while the sum is 35.

The square root of 149786 is about 387.0219632011. The cubic root of 149786 is about 53.1076487741.

The spelling of 149786 in words is "one hundred forty-nine thousand, seven hundred eighty-six".