130665287 has 2 divisors, whose sum is σ = 130665288. Its totient is φ = 130665286.

The previous prime is 130665263. The next prime is 130665307. The reversal of 130665287 is 782566031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130665287 - 2²² = 126470983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130665287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130665187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65332643 + 65332644.

It is an arithmetic number, because the mean of its divisors is an integer number (65332644).

Almost surely, 2^130665287 is an apocalyptic number.

130665287 is a deficient number, since it is larger than the sum of its proper divisors (1).

130665287 is an equidigital number, since it uses as much as digits as its factorization.

130665287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 130665287 is about 11430.8917849834. The cubic root of 130665287 is about 507.4423880826.

The spelling of 130665287 in words is "one hundred thirty million, six hundred sixty-five thousand, two hundred eighty-seven".