131520005 has 16 divisors (see below), whose sum is σ = 162316224. Its totient is φ = 102241920.

The previous prime is 131519989. The next prime is 131520031. The reversal of 131520005 is 500025131.

It is not a de Polignac number, because 131520005 - 2⁴ = 131519989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56882 + ... + 59148.

It is an arithmetic number, because the mean of its divisors is an integer number (10144764).

Almost surely, 2^131520005 is an apocalyptic number.

It is an amenable number.

131520005 is a deficient number, since it is larger than the sum of its proper divisors (30796219).

131520005 is a wasteful number, since it uses less digits than its factorization.

131520005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 131520005 is about 11468.2171674589. The cubic root of 131520005 is about 508.5464249187.

Adding to 131520005 its reverse (500025131), we get a palindrome (631545136).

The spelling of 131520005 in words is "one hundred thirty-one million, five hundred twenty thousand, five".