130787249 has 2 divisors, whose sum is σ = 130787250. Its totient is φ = 130787248.

The previous prime is 130787243. The next prime is 130787257. The reversal of 130787249 is 942787031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81577024 + 49210225 = 9032^2 + 7015^2 .

It is a cyclic number.

It is not a de Polignac number, because 130787249 - 2¹⁶ = 130721713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130787243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65393624 + 65393625.

It is an arithmetic number, because the mean of its divisors is an integer number (65393625).

Almost surely, 2^130787249 is an apocalyptic number.

It is an amenable number.

130787249 is a deficient number, since it is larger than the sum of its proper divisors (1).

130787249 is an equidigital number, since it uses as much as digits as its factorization.

130787249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 130787249 is about 11436.2252950875. The cubic root of 130787249 is about 507.6002199609.

The spelling of 130787249 in words is "one hundred thirty million, seven hundred eighty-seven thousand, two hundred forty-nine".