155103 has 16 divisors (see below), whose sum is σ = 230496. Its totient is φ = 92160.

The previous prime is 155087. The next prime is 155119. The reversal of 155103 is 301551.

It is an interprime number because it is at equal distance from previous prime (155087) and next prime (155119).

It is not a de Polignac number, because 155103 - 2⁴ = 155087 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155153) 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 in 15 ways as a sum of consecutive naturals, for example, 1551 + ... + 1647.

It is an arithmetic number, because the mean of its divisors is an integer number (14406).

2¹⁵⁵¹⁰³ is an apocalyptic number.

155103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

155103 is a deficient number, since it is larger than the sum of its proper divisors (75393).

155103 is a wasteful number, since it uses less digits than its factorization.

155103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 155103 is about 393.8311821073. The cubic root of 155103 is about 53.7287494867.

Adding to 155103 its reverse (301551), we get a palindrome (456654).

The spelling of 155103 in words is "one hundred fifty-five thousand, one hundred three".