135131709800 has 24 divisors (see below), whose sum is σ = 314181225750. Its totient is φ = 54052683840.

The previous prime is 135131709761. The next prime is 135131709827. The reversal of 135131709800 is 8907131531.

It can be written as a sum of positive squares in 3 ways, for example, as 132206414404 + 2925295396 = 363602^2 + 54086^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337829075 + ... + 337829474.

Almost surely, 2^135131709800 is an apocalyptic number.

135131709800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135131709800 is an abundant number, since it is smaller than the sum of its proper divisors (179049515950).

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

135131709800 is a wasteful number, since it uses less digits than its factorization.

135131709800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675658565 (or 675658556 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 135131709800 in words is "one hundred thirty-five billion, one hundred thirty-one million, seven hundred nine thousand, eight hundred".