131505005 has 8 divisors (see below), whose sum is σ = 159011424. Its totient is φ = 104400400.

The previous prime is 131505001. The next prime is 131505037. The reversal of 131505005 is 500505131.

It is a happy number.

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

It is not a de Polignac number, because 131505005 - 2² = 131505001 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 (131505001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99731 + ... + 101040.

It is an arithmetic number, because the mean of its divisors is an integer number (19876428).

Almost surely, 2^131505005 is an apocalyptic number.

It is an amenable number.

131505005 is a deficient number, since it is larger than the sum of its proper divisors (27506419).

131505005 is a wasteful number, since it uses less digits than its factorization.

131505005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200907.

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

The square root of 131505005 is about 11467.5631674737. The cubic root of 131505005 is about 508.5270907588.

The spelling of 131505005 in words is "one hundred thirty-one million, five hundred five thousand, five".