15118085429 has 2 divisors, whose sum is σ = 15118085430. Its totient is φ = 15118085428.

The previous prime is 15118085417. The next prime is 15118085443. The reversal of 15118085429 is 92458081151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13728808900 + 1389276529 = 117170^2 + 37273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15118085429 is a prime.

It is a super-2 number, since 2×15118085429² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15118085429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15118085459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7559042714 + 7559042715.

It is an arithmetic number, because the mean of its divisors is an integer number (7559042715).

Almost surely, 2^15118085429 is an apocalyptic number.

It is an amenable number.

15118085429 is a deficient number, since it is larger than the sum of its proper divisors (1).

15118085429 is an equidigital number, since it uses as much as digits as its factorization.

15118085429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 15118085429 in words is "fifteen billion, one hundred eighteen million, eighty-five thousand, four hundred twenty-nine".