136234257236 has 36 divisors (see below), whose sum is σ = 302546212416. Its totient is φ = 53078281200.

The previous prime is 136234257233. The next prime is 136234257253. The reversal of 136234257236 is 632752432631.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136234257233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31592060 + ... + 31596371.

It is an arithmetic number, because the mean of its divisors is an integer number (8404061456).

Almost surely, 2^136234257236 is an apocalyptic number.

It is an amenable number.

136234257236 is an abundant number, since it is smaller than the sum of its proper divisors (166311955180).

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

136234257236 is a wasteful number, since it uses less digits than its factorization.

136234257236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63188460 (or 63188451 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 44.

Adding to 136234257236 its reverse (632752432631), we get a palindrome (768986689867).

The spelling of 136234257236 in words is "one hundred thirty-six billion, two hundred thirty-four million, two hundred fifty-seven thousand, two hundred thirty-six".