260400013 has 2 divisors, whose sum is σ = 260400014. Its totient is φ = 260400012.

The previous prime is 260399983. The next prime is 260400029. The reversal of 260400013 is 310004062.

It is an a-pointer prime, because the next prime (260400029) can be obtained adding 260400013 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258662889 + 1737124 = 16083^2 + 1318^2 .

It is a cyclic number.

It is not a de Polignac number, because 260400013 - 2⁹ = 260399501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260400013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260400083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130200006 + 130200007.

It is an arithmetic number, because the mean of its divisors is an integer number (130200007).

Almost surely, 2^260400013 is an apocalyptic number.

It is an amenable number.

260400013 is a deficient number, since it is larger than the sum of its proper divisors (1).

260400013 is an equidigital number, since it uses as much as digits as its factorization.

260400013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 260400013 is about 16136.9146059586. The cubic root of 260400013 is about 638.5775807185.

Adding to 260400013 its reverse (310004062), we get a palindrome (570404075).

The spelling of 260400013 in words is "two hundred sixty million, four hundred thousand, thirteen".