135136312050 has 48 divisors (see below), whose sum is σ = 336614517792. Its totient is φ = 35877590400.

The previous prime is 135136311979. The next prime is 135136312109. The reversal of 135136312050 is 50213631531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 135136311999 and 135136312017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1950331 + ... + 2018430.

It is an arithmetic number, because the mean of its divisors is an integer number (7012802454).

Almost surely, 2^135136312050 is an apocalyptic number.

135136312050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135136312050 is an abundant number, since it is smaller than the sum of its proper divisors (201478205742).

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

135136312050 is a wasteful number, since it uses less digits than its factorization.

135136312050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969003 (or 3968998 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 135136312050 its reverse (50213631531), we get a palindrome (185349943581).

The spelling of 135136312050 in words is "one hundred thirty-five billion, one hundred thirty-six million, three hundred twelve thousand, fifty".