131383247 has 2 divisors, whose sum is σ = 131383248. Its totient is φ = 131383246.

The previous prime is 131383223. The next prime is 131383249. The reversal of 131383247 is 742383131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131383247 is a prime.

Together with 131383249, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_7452257 and since 131383247 and 7452257 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131383249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65691623 + 65691624.

It is an arithmetic number, because the mean of its divisors is an integer number (65691624).

Almost surely, 2^131383247 is an apocalyptic number.

131383247 is a deficient number, since it is larger than the sum of its proper divisors (1).

131383247 is an equidigital number, since it uses as much as digits as its factorization.

131383247 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 131383247 is about 11462.2531380178. The cubic root of 131383247 is about 508.3700970873.

The spelling of 131383247 in words is "one hundred thirty-one million, three hundred eighty-three thousand, two hundred forty-seven".