136740740 has 48 divisors (see below), whose sum is σ = 297198720. Its totient is φ = 52811520.

The previous prime is 136740733. The next prime is 136740761. The reversal of 136740740 is 47047631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 136740697 and 136740706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83651 + ... + 85269.

It is an arithmetic number, because the mean of its divisors is an integer number (6191640).

Almost surely, 2^136740740 is an apocalyptic number.

136740740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136740740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148599360).

136740740 is an abundant number, since it is smaller than the sum of its proper divisors (160457980).

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

136740740 is a wasteful number, since it uses less digits than its factorization.

136740740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 136740740 is about 11693.6196278141. The cubic root of 136740740 is about 515.1882806720.

The spelling of 136740740 in words is "one hundred thirty-six million, seven hundred forty thousand, seven hundred forty".