136131243444 has 36 divisors (see below), whose sum is σ = 393268037344. Its totient is φ = 38894640912.

The previous prime is 136131243439. The next prime is 136131243487. The reversal of 136131243444 is 444342131631.

136131243444 is a `hidden beast` number, since 1 + 3 + 613 + 1 + 2 + 4 + 34 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×136131243444² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 136131243399 and 136131243408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270101422 + ... + 270101925.

Almost surely, 2^136131243444 is an apocalyptic number.

136131243444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

136131243444 is an abundant number, since it is smaller than the sum of its proper divisors (257136793900).

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

136131243444 is a wasteful number, since it uses less digits than its factorization.

136131243444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540203364 (or 540203359 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The spelling of 136131243444 in words is "one hundred thirty-six billion, one hundred thirty-one million, two hundred forty-three thousand, four hundred forty-four".