15105641513 has 2 divisors, whose sum is σ = 15105641514. Its totient is φ = 15105641512.

The previous prime is 15105641491. The next prime is 15105641543. The reversal of 15105641513 is 31514650151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10122975769 + 4982665744 = 100613^2 + 70588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15105641513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15105641513.

It is not a weakly prime, because it can be changed into another prime (15105641543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7552820756 + 7552820757.

It is an arithmetic number, because the mean of its divisors is an integer number (7552820757).

Almost surely, 2^15105641513 is an apocalyptic number.

It is an amenable number.

15105641513 is a deficient number, since it is larger than the sum of its proper divisors (1).

15105641513 is an equidigital number, since it uses as much as digits as its factorization.

15105641513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 15105641513 in words is "fifteen billion, one hundred five million, six hundred forty-one thousand, five hundred thirteen".