15235505137 has 2 divisors, whose sum is σ = 15235505138. Its totient is φ = 15235505136.

The previous prime is 15235505099. The next prime is 15235505231. The reversal of 15235505137 is 73150553251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10448110656 + 4787394481 = 102216^2 + 69191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15235505137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15235505096 and 15235505105.

It is not a weakly prime, because it can be changed into another prime (15235505837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7617752568 + 7617752569.

It is an arithmetic number, because the mean of its divisors is an integer number (7617752569).

Almost surely, 2^15235505137 is an apocalyptic number.

It is an amenable number.

15235505137 is a deficient number, since it is larger than the sum of its proper divisors (1).

15235505137 is an equidigital number, since it uses as much as digits as its factorization.

15235505137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78750, while the sum is 37.

The spelling of 15235505137 in words is "fifteen billion, two hundred thirty-five million, five hundred five thousand, one hundred thirty-seven".