155893 has 2 divisors, whose sum is σ = 155894. Its totient is φ = 155892.

The previous prime is 155891. The next prime is 155921. The reversal of 155893 is 398551.

155893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154449 + 1444 = 393^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 155893 - 2¹ = 155891 is a prime.

Together with 155891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77946 + 77947.

It is an arithmetic number, because the mean of its divisors is an integer number (77947).

2¹⁵⁵⁸⁹³ is an apocalyptic number.

It is an amenable number.

155893 is a deficient number, since it is larger than the sum of its proper divisors (1).

155893 is an equidigital number, since it uses as much as digits as its factorization.

155893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 155893 is about 394.8328760374. The cubic root of 155893 is about 53.8198155334.

The spelling of 155893 in words is "one hundred fifty-five thousand, eight hundred ninety-three".