155383 has 2 divisors, whose sum is σ = 155384. Its totient is φ = 155382.

The previous prime is 155381. The next prime is 155387. The reversal of 155383 is 383551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155383 - 2¹ = 155381 is a prime.

Together with 155381, 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 (155381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77691 + 77692.

It is an arithmetic number, because the mean of its divisors is an integer number (77692).

2¹⁵⁵³⁸³ is an apocalyptic number.

155383 is a deficient number, since it is larger than the sum of its proper divisors (1).

155383 is an equidigital number, since it uses as much as digits as its factorization.

155383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 155383 is about 394.1865040815. The cubic root of 155383 is about 53.7610613615.

The spelling of 155383 in words is "one hundred fifty-five thousand, three hundred eighty-three".