135020071 has 2 divisors, whose sum is σ = 135020072. Its totient is φ = 135020070.

The previous prime is 135020047. The next prime is 135020089. The reversal of 135020071 is 170020531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135020071 - 2¹³ = 135011879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135020021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67510035 + 67510036.

It is an arithmetic number, because the mean of its divisors is an integer number (67510036).

Almost surely, 2^135020071 is an apocalyptic number.

135020071 is a deficient number, since it is larger than the sum of its proper divisors (1).

135020071 is an equidigital number, since it uses as much as digits as its factorization.

135020071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 135020071 is about 11619.8137248409. The cubic root of 135020071 is about 513.0182056523.

The spelling of 135020071 in words is "one hundred thirty-five million, twenty thousand, seventy-one".