131325213 has 4 divisors (see below), whose sum is σ = 175100288. Its totient is φ = 87550140.

The previous prime is 131325211. The next prime is 131325217. The reversal of 131325213 is 312523131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131325213 - 2¹ = 131325211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131325213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131325211) 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, 21887533 + ... + 21887538.

It is an arithmetic number, because the mean of its divisors is an integer number (43775072).

Almost surely, 2^131325213 is an apocalyptic number.

It is an amenable number.

131325213 is a deficient number, since it is larger than the sum of its proper divisors (43775075).

131325213 is an equidigital number, since it uses as much as digits as its factorization.

131325213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43775074.

The product of its digits is 540, while the sum is 21.

The square root of 131325213 is about 11459.7213316904. The cubic root of 131325213 is about 508.2952344345.

Adding to 131325213 its reverse (312523131), we get a palindrome (443848344).

The spelling of 131325213 in words is "one hundred thirty-one million, three hundred twenty-five thousand, two hundred thirteen".