135307073 has 4 divisors (see below), whose sum is σ = 147607728. Its totient is φ = 123006420.

The previous prime is 135307057. The next prime is 135307079. The reversal of 135307073 is 370703531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135307073 - 2⁴ = 135307057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135307079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6150311 + ... + 6150332.

It is an arithmetic number, because the mean of its divisors is an integer number (36901932).

Almost surely, 2^135307073 is an apocalyptic number.

It is an amenable number.

135307073 is a deficient number, since it is larger than the sum of its proper divisors (12300655).

135307073 is a wasteful number, since it uses less digits than its factorization.

135307073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12300654.

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

The square root of 135307073 is about 11632.1568507307. The cubic root of 135307073 is about 513.3814431307.

The spelling of 135307073 in words is "one hundred thirty-five million, three hundred seven thousand, seventy-three".