136313840 has 40 divisors (see below), whose sum is σ = 341311488. Its totient is φ = 50330880.

The previous prime is 136313797. The next prime is 136313843. The reversal of 136313840 is 48313631.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136313843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64496 + ... + 66575.

Almost surely, 2^136313840 is an apocalyptic number.

136313840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136313840 is an abundant number, since it is smaller than the sum of its proper divisors (204997648).

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

136313840 is a wasteful number, since it uses less digits than its factorization.

136313840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131097 (or 131091 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 136313840 is about 11675.3518148277. The cubic root of 136313840 is about 514.6515882661.

It can be divided in two parts, 13631 and 3840, that added together give a palindrome (17471).

The spelling of 136313840 in words is "one hundred thirty-six million, three hundred thirteen thousand, eight hundred forty".