135525947 has 2 divisors, whose sum is σ = 135525948. Its totient is φ = 135525946.

The previous prime is 135525937. The next prime is 135525977. The reversal of 135525947 is 749525531.

It is a weak prime.

It is an emirp because it is prime and its reverse (749525531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135525947 - 2⁶ = 135525883 is a prime.

It is not a weakly prime, because it can be changed into another prime (135525937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67762973 + 67762974.

It is an arithmetic number, because the mean of its divisors is an integer number (67762974).

Almost surely, 2^135525947 is an apocalyptic number.

135525947 is a deficient number, since it is larger than the sum of its proper divisors (1).

135525947 is an equidigital number, since it uses as much as digits as its factorization.

135525947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 41.

The square root of 135525947 is about 11641.5611925549. The cubic root of 135525947 is about 513.6581108955.

The spelling of 135525947 in words is "one hundred thirty-five million, five hundred twenty-five thousand, nine hundred forty-seven".