15129071071 has 2 divisors, whose sum is σ = 15129071072. Its totient is φ = 15129071070.

The previous prime is 15129071029. The next prime is 15129071129. The reversal of 15129071071 is 17017092151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15129071071 - 2¹¹ = 15129069023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15129071371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7564535535 + 7564535536.

It is an arithmetic number, because the mean of its divisors is an integer number (7564535536).

Almost surely, 2^15129071071 is an apocalyptic number.

15129071071 is a deficient number, since it is larger than the sum of its proper divisors (1).

15129071071 is an equidigital number, since it uses as much as digits as its factorization.

15129071071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 34.

The spelling of 15129071071 in words is "fifteen billion, one hundred twenty-nine million, seventy-one thousand, seventy-one".