15129071129 has 2 divisors, whose sum is σ = 15129071130. Its totient is φ = 15129071128.

The previous prime is 15129071071. The next prime is 15129071159. The reversal of 15129071129 is 92117092151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14816488729 + 312582400 = 121723^2 + 17680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15129071129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15129071092 and 15129071101.

It is not a weakly prime, because it can be changed into another prime (15129071159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7564535564 + 7564535565.

It is an arithmetic number, because the mean of its divisors is an integer number (7564535565).

Almost surely, 2^15129071129 is an apocalyptic number.

It is an amenable number.

15129071129 is a deficient number, since it is larger than the sum of its proper divisors (1).

15129071129 is an equidigital number, since it uses as much as digits as its factorization.

15129071129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 38.

The spelling of 15129071129 in words is "fifteen billion, one hundred twenty-nine million, seventy-one thousand, one hundred twenty-nine".