135700209497 has 4 divisors (see below), whose sum is σ = 135756216960. Its totient is φ = 135644202036.

The previous prime is 135700209493. The next prime is 135700209511. The reversal of 135700209497 is 794902007531.

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 135700209497 - 2² = 135700209493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135700209493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28000097 + ... + 28004942.

It is an arithmetic number, because the mean of its divisors is an integer number (33939054240).

Almost surely, 2^135700209497 is an apocalyptic number.

It is an amenable number.

135700209497 is a deficient number, since it is larger than the sum of its proper divisors (56007463).

135700209497 is an equidigital number, since it uses as much as digits as its factorization.

135700209497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56007462.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 135700209497 in words is "one hundred thirty-five billion, seven hundred million, two hundred nine thousand, four hundred ninety-seven".