135073073 has 2 divisors, whose sum is σ = 135073074. Its totient is φ = 135073072.

The previous prime is 135073063. The next prime is 135073087. The reversal of 135073073 is 370370531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 59243809 = 8708^2 + 7697^2 .

It is an emirp because it is prime and its reverse (370370531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135073073 - 2²⁴ = 118295857 is a prime.

It is not a weakly prime, because it can be changed into another prime (135073063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67536536 + 67536537.

It is an arithmetic number, because the mean of its divisors is an integer number (67536537).

Almost surely, 2^135073073 is an apocalyptic number.

It is an amenable number.

135073073 is a deficient number, since it is larger than the sum of its proper divisors (1).

135073073 is an equidigital number, since it uses as much as digits as its factorization.

135073073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615, while the sum is 29.

The square root of 135073073 is about 11622.0941744593. The cubic root of 135073073 is about 513.0853251395.

The spelling of 135073073 in words is "one hundred thirty-five million, seventy-three thousand, seventy-three".