130640617 has 2 divisors, whose sum is σ = 130640618. Its totient is φ = 130640616.

The previous prime is 130640611. The next prime is 130640651. The reversal of 130640617 is 716046031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109746576 + 20894041 = 10476^2 + 4571^2 .

It is a cyclic number.

It is not a de Polignac number, because 130640617 - 2¹¹ = 130638569 is a prime.

It is a Chen prime.

It is equal to p_7412383 and since 130640617 and 7412383 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (130640611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65320308 + 65320309.

It is an arithmetic number, because the mean of its divisors is an integer number (65320309).

Almost surely, 2^130640617 is an apocalyptic number.

It is an amenable number.

130640617 is a deficient number, since it is larger than the sum of its proper divisors (1).

130640617 is an equidigital number, since it uses as much as digits as its factorization.

130640617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 130640617 is about 11429.8126406341. The cubic root of 130640617 is about 507.4104505218.

Adding to 130640617 its reverse (716046031), we get a palindrome (846686648).

The spelling of 130640617 in words is "one hundred thirty million, six hundred forty thousand, six hundred seventeen".