140149 has 4 divisors (see below), whose sum is σ = 140940. Its totient is φ = 139360.

The previous prime is 140143. The next prime is 140159. The reversal of 140149 is 941041.

140149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22500 + 117649 = 150^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 140149 - 2¹¹ = 138101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9 + ... + 529.

It is an arithmetic number, because the mean of its divisors is an integer number (35235).

2¹⁴⁰¹⁴⁹ is an apocalyptic number.

It is an amenable number.

140149 is a deficient number, since it is larger than the sum of its proper divisors (791).

140149 is an equidigital number, since it uses as much as digits as its factorization.

140149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 140149 is about 374.3647953534. The cubic root of 140149 is about 51.9433554783.

It can be divided in two parts, 140 and 149, that added together give a square (289 = 17²).

The spelling of 140149 in words is "one hundred forty thousand, one hundred forty-nine".