131324387 has 2 divisors, whose sum is σ = 131324388. Its totient is φ = 131324386.

The previous prime is 131324381. The next prime is 131324423. The reversal of 131324387 is 783423131.

It is a weak prime.

It is an emirp because it is prime and its reverse (783423131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131324387 - 2¹⁶ = 131258851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131324381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65662193 + 65662194.

It is an arithmetic number, because the mean of its divisors is an integer number (65662194).

Almost surely, 2^131324387 is an apocalyptic number.

131324387 is a deficient number, since it is larger than the sum of its proper divisors (1).

131324387 is an equidigital number, since it uses as much as digits as its factorization.

131324387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 131324387 is about 11459.6852923630. The cubic root of 131324387 is about 508.2941687525.

The spelling of 131324387 in words is "one hundred thirty-one million, three hundred twenty-four thousand, three hundred eighty-seven".