131043287 has 2 divisors, whose sum is σ = 131043288. Its totient is φ = 131043286.

The previous prime is 131043251. The next prime is 131043301. The reversal of 131043287 is 782340131.

It is a strong prime.

It is an emirp because it is prime and its reverse (782340131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131043287 - 2¹² = 131039191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131049287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65521643 + 65521644.

It is an arithmetic number, because the mean of its divisors is an integer number (65521644).

Almost surely, 2^131043287 is an apocalyptic number.

131043287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131043287 is an equidigital number, since it uses as much as digits as its factorization.

131043287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 131043287 is about 11447.4139874471. The cubic root of 131043287 is about 507.9312415981.

The spelling of 131043287 in words is "one hundred thirty-one million, forty-three thousand, two hundred eighty-seven".