135078848231 has 4 divisors (see below), whose sum is σ = 139436230464. Its totient is φ = 130721466000.

The previous prime is 135078848221. The next prime is 135078848237. The reversal of 135078848231 is 132848870531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135078848231 - 2²⁶ = 135011739367 is a prime.

It is a super-2 number, since 2×135078848231² (a number of 23 digits) contains 22 as substring.

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 135078848231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135078848237) 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, 2178691070 + ... + 2178691131.

It is an arithmetic number, because the mean of its divisors is an integer number (34859057616).

Almost surely, 2^135078848231 is an apocalyptic number.

135078848231 is a deficient number, since it is larger than the sum of its proper divisors (4357382233).

135078848231 is an equidigital number, since it uses as much as digits as its factorization.

135078848231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357382232.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 135078848231 in words is "one hundred thirty-five billion, seventy-eight million, eight hundred forty-eight thousand, two hundred thirty-one".