135730212693 has 4 divisors (see below), whose sum is σ = 180973616928. Its totient is φ = 90486808460.

The previous prime is 135730212691. The next prime is 135730212719. The reversal of 135730212693 is 396212037531.

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 135730212693 - 2¹ = 135730212691 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135730212691) 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, 22621702113 + ... + 22621702118.

It is an arithmetic number, because the mean of its divisors is an integer number (45243404232).

Almost surely, 2^135730212693 is an apocalyptic number.

It is an amenable number.

135730212693 is a deficient number, since it is larger than the sum of its proper divisors (45243404235).

135730212693 is an equidigital number, since it uses as much as digits as its factorization.

135730212693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45243404234.

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 135730212693 in words is "one hundred thirty-five billion, seven hundred thirty million, two hundred twelve thousand, six hundred ninety-three".