131055005 has 4 divisors (see below), whose sum is σ = 157266012. Its totient is φ = 104844000.

The previous prime is 131054993. The next prime is 131055007. The reversal of 131055005 is 500550131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40081561 + 90973444 = 6331^2 + 9538^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131055005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131055007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13105496 + ... + 13105505.

It is an arithmetic number, because the mean of its divisors is an integer number (39316503).

Almost surely, 2^131055005 is an apocalyptic number.

It is an amenable number.

131055005 is a deficient number, since it is larger than the sum of its proper divisors (26211007).

131055005 is an equidigital number, since it uses as much as digits as its factorization.

131055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26211006.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 131055005 is about 11447.9257946582. The cubic root of 131055005 is about 507.9463810252.

The spelling of 131055005 in words is "one hundred thirty-one million, fifty-five thousand, five".