135515047 has 2 divisors, whose sum is σ = 135515048. Its totient is φ = 135515046.

The previous prime is 135514991. The next prime is 135515063. The reversal of 135515047 is 740515531.

135515047 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 is a cyclic number.

It is not a de Polignac number, because 135515047 - 2¹¹ = 135512999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135555047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67757523 + 67757524.

It is an arithmetic number, because the mean of its divisors is an integer number (67757524).

Almost surely, 2^135515047 is an apocalyptic number.

135515047 is a deficient number, since it is larger than the sum of its proper divisors (1).

135515047 is an equidigital number, since it uses as much as digits as its factorization.

135515047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 135515047 is about 11641.0930328728. The cubic root of 135515047 is about 513.6443397969.

The spelling of 135515047 in words is "one hundred thirty-five million, five hundred fifteen thousand, forty-seven".