135753560257 has 4 divisors (see below), whose sum is σ = 155146926016. Its totient is φ = 116360194500.

The previous prime is 135753560249. The next prime is 135753560287. The reversal of 135753560257 is 752065357531.

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 135753560257 - 2³ = 135753560249 is a prime.

It is the 368448-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135753560257.

It is not an unprimeable number, because it can be changed into a prime (135753560287) by changing a digit.

It is a nontrivial repunit in base 368447.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9696682869 + ... + 9696682882.

It is an arithmetic number, because the mean of its divisors is an integer number (38786731504).

Almost surely, 2^135753560257 is an apocalyptic number.

It is an amenable number.

135753560257 is a deficient number, since it is larger than the sum of its proper divisors (19393365759).

135753560257 is an equidigital number, since it uses as much as digits as its factorization.

135753560257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19393365758.

The product of its (nonzero) digits is 3307500, while the sum is 49.

The spelling of 135753560257 in words is "one hundred thirty-five billion, seven hundred fifty-three million, five hundred sixty thousand, two hundred fifty-seven".