136644502134 has 32 divisors (see below), whose sum is σ = 312377135616. Its totient is φ = 39035430720.

The previous prime is 136644502133. The next prime is 136644502213. The reversal of 136644502134 is 431205446631.

It is a junction number, because it is equal to n+sod(n) for n = 136644502092 and 136644502101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136644502133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43359 + ... + 524565.

It is an arithmetic number, because the mean of its divisors is an integer number (9761785488).

Almost surely, 2^136644502134 is an apocalyptic number.

136644502134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

136644502134 is an abundant number, since it is smaller than the sum of its proper divisors (175732633482).

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

136644502134 is a wasteful number, since it uses less digits than its factorization.

136644502134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487980.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 136644502134 its reverse (431205446631), we get a palindrome (567849948765).

The spelling of 136644502134 in words is "one hundred thirty-six billion, six hundred forty-four million, five hundred two thousand, one hundred thirty-four".