131155 has 8 divisors (see below), whose sum is σ = 166752. Its totient is φ = 98688.

The previous prime is 131149. The next prime is 131171. The reversal of 131155 is 551131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131155 - 2⁹ = 130643 is a prime.

It is a Duffinian number.

131155 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687 + ... + 856.

It is an arithmetic number, because the mean of its divisors is an integer number (20844).

2¹³¹¹⁵⁵ is an apocalyptic number.

131155 is a deficient number, since it is larger than the sum of its proper divisors (35597).

131155 is a wasteful number, since it uses less digits than its factorization.

131155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565.

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

The square root of 131155 is about 362.1532824648. The cubic root of 131155 is about 50.8075535919.

Adding to 131155 its reverse (551131), we get a palindrome (682286).

The spelling of 131155 in words is "one hundred thirty-one thousand, one hundred fifty-five".