135135947 has 2 divisors, whose sum is σ = 135135948. Its totient is φ = 135135946.

The previous prime is 135135943. The next prime is 135135967. The reversal of 135135947 is 749531531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135135947 - 2² = 135135943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135135947.

It is not a weakly prime, because it can be changed into another prime (135135943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67567973 + 67567974.

It is an arithmetic number, because the mean of its divisors is an integer number (67567974).

Almost surely, 2^135135947 is an apocalyptic number.

135135947 is a deficient number, since it is larger than the sum of its proper divisors (1).

135135947 is an equidigital number, since it uses as much as digits as its factorization.

135135947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 135135947 is about 11624.7987939577. The cubic root of 135135947 is about 513.1649233448.

The spelling of 135135947 in words is "one hundred thirty-five million, one hundred thirty-five thousand, nine hundred forty-seven".