135005402412 has 18 divisors (see below), whose sum is σ = 341263656188. Its totient is φ = 45001800792.

The previous prime is 135005402353. The next prime is 135005402419. The reversal of 135005402412 is 214204500531.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (135005402419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1875074998 + ... + 1875075069.

Almost surely, 2^135005402412 is an apocalyptic number.

135005402412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135005402412 is an abundant number, since it is smaller than the sum of its proper divisors (206258253776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135005402412 is a wasteful number, since it uses less digits than its factorization.

135005402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750150077 (or 3750150072 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 135005402412 its reverse (214204500531), we get a palindrome (349209902943).

The spelling of 135005402412 in words is "one hundred thirty-five billion, five million, four hundred two thousand, four hundred twelve".