15272723129 has 2 divisors, whose sum is σ = 15272723130. Its totient is φ = 15272723128.

The previous prime is 15272723119. The next prime is 15272723131. The reversal of 15272723129 is 92132727251.

15272723129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12063727225 + 3208995904 = 109835^2 + 56648^2 .

It is an emirp because it is prime and its reverse (92132727251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15272723129 is a prime.

Together with 15272723131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15272723119) 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, 7636361564 + 7636361565.

It is an arithmetic number, because the mean of its divisors is an integer number (7636361565).

Almost surely, 2^15272723129 is an apocalyptic number.

It is an amenable number.

15272723129 is a deficient number, since it is larger than the sum of its proper divisors (1).

15272723129 is an equidigital number, since it uses as much as digits as its factorization.

15272723129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The spelling of 15272723129 in words is "fifteen billion, two hundred seventy-two million, seven hundred twenty-three thousand, one hundred twenty-nine".