155941 has 4 divisors (see below), whose sum is σ = 165132. Its totient is φ = 146752.

The previous prime is 155921. The next prime is 156007. The reversal of 155941 is 149551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52900 + 103041 = 230^2 + 321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155941 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 (155921) 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 3 ways as a sum of consecutive naturals, for example, 4570 + ... + 4603.

It is an arithmetic number, because the mean of its divisors is an integer number (41283).

2¹⁵⁵⁹⁴¹ is an apocalyptic number.

It is an amenable number.

155941 is a deficient number, since it is larger than the sum of its proper divisors (9191).

155941 is an equidigital number, since it uses as much as digits as its factorization.

155941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9190.

The product of its digits is 900, while the sum is 25.

The square root of 155941 is about 394.8936565710. The cubic root of 155941 is about 53.8253387364.

It can be divided in two parts, 1559 and 41, that added together give a square (1600 = 40²).

The spelling of 155941 in words is "one hundred fifty-five thousand, nine hundred forty-one".