131320522 has 8 divisors (see below), whose sum is σ = 198012672. Its totient is φ = 65316300.

The previous prime is 131320517. The next prime is 131320523. The reversal of 131320522 is 225023131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131320522.

It is not an unprimeable number, because it can be changed into a prime (131320523) 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, 171504 + ... + 172267.

It is an arithmetic number, because the mean of its divisors is an integer number (24751584).

Almost surely, 2^131320522 is an apocalyptic number.

131320522 is a deficient number, since it is larger than the sum of its proper divisors (66692150).

131320522 is a wasteful number, since it uses less digits than its factorization.

131320522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343964.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131320522 is about 11459.5166564738. The cubic root of 131320522 is about 508.2891821787.

Adding to 131320522 its reverse (225023131), we get a palindrome (356343653).

The spelling of 131320522 in words is "one hundred thirty-one million, three hundred twenty thousand, five hundred twenty-two".