149741 has 4 divisors (see below), whose sum is σ = 150972. Its totient is φ = 148512.

The previous prime is 149731. The next prime is 149749. The reversal of 149741 is 147941.

149741 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 an emirpimes, since its reverse is a distinct semiprime: 147941 = 239 ⋅619.

It can be written as a sum of positive squares in 2 ways, for example, as 126025 + 23716 = 355^2 + 154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149749) 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, 410 + ... + 683.

It is an arithmetic number, because the mean of its divisors is an integer number (37743).

2¹⁴⁹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

149741 is a deficient number, since it is larger than the sum of its proper divisors (1231).

149741 is a wasteful number, since it uses less digits than its factorization.

149741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230.

The product of its digits is 1008, while the sum is 26.

The square root of 149741 is about 386.9638225984. The cubic root of 149741 is about 53.1023298890.

The spelling of 149741 in words is "one hundred forty-nine thousand, seven hundred forty-one".