131332213 has 16 divisors (see below), whose sum is σ = 140981760. Its totient is φ = 122068800.

The previous prime is 131332211. The next prime is 131332273. The reversal of 131332213 is 312233131.

It is a cyclic number.

It is not a de Polignac number, because 131332213 - 2¹ = 131332211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131332211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311743 + ... + 312163.

It is an arithmetic number, because the mean of its divisors is an integer number (8811360).

Almost surely, 2^131332213 is an apocalyptic number.

It is an amenable number.

131332213 is a deficient number, since it is larger than the sum of its proper divisors (9649547).

131332213 is a wasteful number, since it uses less digits than its factorization.

131332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its digits is 324, while the sum is 19.

The square root of 131332213 is about 11460.0267451695. The cubic root of 131332213 is about 508.3042654584.

Adding to 131332213 its reverse (312233131), we get a palindrome (443565344).

The spelling of 131332213 in words is "one hundred thirty-one million, three hundred thirty-two thousand, two hundred thirteen".