15135073817 has 2 divisors, whose sum is σ = 15135073818. Its totient is φ = 15135073816.

The previous prime is 15135073799. The next prime is 15135073853. The reversal of 15135073817 is 71837053151.

15135073817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13294320601 + 1840753216 = 115301^2 + 42904^2 .

It is a cyclic number.

It is not a de Polignac number, because 15135073817 - 2¹⁰ = 15135072793 is a prime.

It is a super-4 number, since 4×15135073817⁴ (a number of 42 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (15135073897) 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, 7567536908 + 7567536909.

It is an arithmetic number, because the mean of its divisors is an integer number (7567536909).

Almost surely, 2^15135073817 is an apocalyptic number.

It is an amenable number.

15135073817 is a deficient number, since it is larger than the sum of its proper divisors (1).

15135073817 is an equidigital number, since it uses as much as digits as its factorization.

15135073817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 15135073817 in words is "fifteen billion, one hundred thirty-five million, seventy-three thousand, eight hundred seventeen".