135777876253 has 4 divisors (see below), whose sum is σ = 136241282268. Its totient is φ = 135314470240.

The previous prime is 135777876251. The next prime is 135777876263. The reversal of 135777876253 is 352678777531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352678777531 = 17 ⋅20745810443.

It can be written as a sum of positive squares in 2 ways, for example, as 68490553849 + 67287322404 = 261707^2 + 259398^2 .

It is a cyclic number.

It is not a de Polignac number, because 135777876253 - 2¹ = 135777876251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135777876191 and 135777876200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135777876251) 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, 231702568 + ... + 231703153.

It is an arithmetic number, because the mean of its divisors is an integer number (34060320567).

Almost surely, 2^135777876253 is an apocalyptic number.

It is an amenable number.

135777876253 is a deficient number, since it is larger than the sum of its proper divisors (463406015).

135777876253 is an equidigital number, since it uses as much as digits as its factorization.

135777876253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463406014.

The product of its digits is 51861600, while the sum is 61.

The spelling of 135777876253 in words is "one hundred thirty-five billion, seven hundred seventy-seven million, eight hundred seventy-six thousand, two hundred fifty-three".