155063 has 4 divisors (see below), whose sum is σ = 160440. Its totient is φ = 149688.

The previous prime is 155047. The next prime is 155069. The reversal of 155063 is 360551.

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

It is a cyclic number.

It is not a de Polignac number, because 155063 - 2⁴ = 155047 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155069) 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, 2645 + ... + 2702.

It is an arithmetic number, because the mean of its divisors is an integer number (40110).

2¹⁵⁵⁰⁶³ is an apocalyptic number.

155063 is a deficient number, since it is larger than the sum of its proper divisors (5377).

155063 is an equidigital number, since it uses as much as digits as its factorization.

155063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 155063 is about 393.7803956522. The cubic root of 155063 is about 53.7241303309.

The spelling of 155063 in words is "one hundred fifty-five thousand, sixty-three".