131174213 has 4 divisors (see below), whose sum is σ = 134719500. Its totient is φ = 127628928.

The previous prime is 131174191. The next prime is 131174257. The reversal of 131174213 is 312471131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76073284 + 55100929 = 8722^2 + 7423^2 .

It is a cyclic number.

It is not a de Polignac number, because 131174213 - 2⁶ = 131174149 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 (131174273) 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, 1772588 + ... + 1772661.

It is an arithmetic number, because the mean of its divisors is an integer number (33679875).

Almost surely, 2^131174213 is an apocalyptic number.

It is an amenable number.

131174213 is a deficient number, since it is larger than the sum of its proper divisors (3545287).

131174213 is an equidigital number, since it uses as much as digits as its factorization.

131174213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545286.

The product of its digits is 504, while the sum is 23.

The square root of 131174213 is about 11453.1311439274. The cubic root of 131174213 is about 508.1003441703.

The spelling of 131174213 in words is "one hundred thirty-one million, one hundred seventy-four thousand, two hundred thirteen".