155113 has 4 divisors (see below), whose sum is σ = 177280. Its totient is φ = 132948.

The previous prime is 155087. The next prime is 155119. The reversal of 155113 is 311551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155113 - 2⁵ = 155081 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (155119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11073 + ... + 11086.

It is an arithmetic number, because the mean of its divisors is an integer number (44320).

2¹⁵⁵¹¹³ is an apocalyptic number.

It is an amenable number.

155113 is a deficient number, since it is larger than the sum of its proper divisors (22167).

155113 is an equidigital number, since it uses as much as digits as its factorization.

155113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22166.

The product of its digits is 75, while the sum is 16.

The square root of 155113 is about 393.8438776977. The cubic root of 155113 is about 53.7299041515.

Adding to 155113 its reverse (311551), we get a palindrome (466664).

The spelling of 155113 in words is "one hundred fifty-five thousand, one hundred thirteen".