13510530409 has 2 divisors, whose sum is σ = 13510530410. Its totient is φ = 13510530408.

The previous prime is 13510530367. The next prime is 13510530437. The reversal of 13510530409 is 90403501531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13474566400 + 35964009 = 116080^2 + 5997^2 .

It is a cyclic number.

It is not a de Polignac number, because 13510530409 - 2²³ = 13502141801 is a prime.

It is not a weakly prime, because it can be changed into another prime (13510531409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6755265204 + 6755265205.

It is an arithmetic number, because the mean of its divisors is an integer number (6755265205).

Almost surely, 2^13510530409 is an apocalyptic number.

It is an amenable number.

13510530409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13510530409 is an equidigital number, since it uses as much as digits as its factorization.

13510530409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 13510530409 in words is "thirteen billion, five hundred ten million, five hundred thirty thousand, four hundred nine".