131532155 has 12 divisors (see below), whose sum is σ = 166585392. Its totient is φ = 99686160.

The previous prime is 131532131. The next prime is 131532161. The reversal of 131532155 is 551235131.

It is a happy number.

It is not a de Polignac number, because 131532155 - 2⁸ = 131531899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34631 + ... + 38240.

It is an arithmetic number, because the mean of its divisors is an integer number (13882116).

Almost surely, 2^131532155 is an apocalyptic number.

131532155 is a deficient number, since it is larger than the sum of its proper divisors (35053237).

131532155 is an equidigital number, since it uses as much as digits as its factorization.

131532155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72914 (or 72895 counting only the distinct ones).

The product of its digits is 2250, while the sum is 26.

The square root of 131532155 is about 11468.7468801086. The cubic root of 131532155 is about 508.5620845105.

Adding to 131532155 its reverse (551235131), we get a palindrome (682767286).

The spelling of 131532155 in words is "one hundred thirty-one million, five hundred thirty-two thousand, one hundred fifty-five".