136875440 has 40 divisors (see below), whose sum is σ = 342717648. Its totient is φ = 50538240.

The previous prime is 136875379. The next prime is 136875443. The reversal of 136875440 is 44578631.

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

It is a junction number, because it is equal to n+sod(n) for n = 136875394 and 136875403.

It is not an unprimeable number, because it can be changed into a prime (136875443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64766 + ... + 66845.

Almost surely, 2^136875440 is an apocalyptic number.

136875440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136875440 is an abundant number, since it is smaller than the sum of its proper divisors (205842208).

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

136875440 is a wasteful number, since it uses less digits than its factorization.

136875440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131637 (or 131631 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 136875440 is about 11699.3777612316. The cubic root of 136875440 is about 515.3573916654.

The spelling of 136875440 in words is "one hundred thirty-six million, eight hundred seventy-five thousand, four hundred forty".