136335640 has 128 divisors (see below), whose sum is σ = 377280000. Its totient is φ = 44198784.

The previous prime is 136335637. The next prime is 136335653. The reversal of 136335640 is 46533631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260419 + ... + 260941.

It is an arithmetic number, because the mean of its divisors is an integer number (2947500).

Almost surely, 2^136335640 is an apocalyptic number.

136335640 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 136335640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188640000).

136335640 is an abundant number, since it is smaller than the sum of its proper divisors (240944360).

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

136335640 is a wasteful number, since it uses less digits than its factorization.

136335640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 136335640 is about 11676.2853682154. The cubic root of 136335640 is about 514.6790220336.

The spelling of 136335640 in words is "one hundred thirty-six million, three hundred thirty-five thousand, six hundred forty".