131135155 has 4 divisors (see below), whose sum is σ = 157362192. Its totient is φ = 104908120.

The previous prime is 131135143. The next prime is 131135189. The reversal of 131135155 is 551531131.

It is a happy number.

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

It is not a de Polignac number, because 131135155 - 2⁹ = 131134643 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 3 ways as a sum of consecutive naturals, for example, 13113511 + ... + 13113520.

It is an arithmetic number, because the mean of its divisors is an integer number (39340548).

Almost surely, 2^131135155 is an apocalyptic number.

131135155 is a deficient number, since it is larger than the sum of its proper divisors (26227037).

131135155 is an equidigital number, since it uses as much as digits as its factorization.

131135155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26227036.

The product of its digits is 1125, while the sum is 25.

The square root of 131135155 is about 11451.4258937479. The cubic root of 131135155 is about 508.0499090713.

Adding to 131135155 its reverse (551531131), we get a palindrome (682666286).

The spelling of 131135155 in words is "one hundred thirty-one million, one hundred thirty-five thousand, one hundred fifty-five".