131547213 has 24 divisors (see below), whose sum is σ = 226704960. Its totient is φ = 75169080.

The previous prime is 131547179. The next prime is 131547217. The reversal of 131547213 is 312745131.

It is not a de Polignac number, because 131547213 - 2⁶ = 131547149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131547217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48393 + ... + 51038.

It is an arithmetic number, because the mean of its divisors is an integer number (9446040).

Almost surely, 2^131547213 is an apocalyptic number.

It is an amenable number.

131547213 is a deficient number, since it is larger than the sum of its proper divisors (95157747).

131547213 is an equidigital number, since it uses as much as digits as its factorization.

131547213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99454 (or 99441 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 131547213 is about 11469.4033410636. The cubic root of 131547213 is about 508.5814907555.

The spelling of 131547213 in words is "one hundred thirty-one million, five hundred forty-seven thousand, two hundred thirteen".