149841 has 6 divisors (see below), whose sum is σ = 216450. Its totient is φ = 99888.

The previous prime is 149839. The next prime is 149861. The reversal of 149841 is 148941.

It can be written as a sum of positive squares in only one way, i.e., 140625 + 9216 = 375^2 + 96^2 .

It is not a de Polignac number, because 149841 - 2¹ = 149839 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149861) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8316 + ... + 8333.

It is an arithmetic number, because the mean of its divisors is an integer number (36075).

2¹⁴⁹⁸⁴¹ is an apocalyptic number.

It is an amenable number.

149841 is a deficient number, since it is larger than the sum of its proper divisors (66609).

149841 is a wasteful number, since it uses less digits than its factorization.

149841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16655 (or 16652 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 149841 is about 387.0930120785. The cubic root of 149841 is about 53.1141481871.

Subtracting from 149841 its reverse (148941), we obtain a square (900 = 30²).

It can be divided in two parts, 149 and 841, that added together give a triangular number (990 = T₄₄).

The spelling of 149841 in words is "one hundred forty-nine thousand, eight hundred forty-one".