135780448 has 12 divisors (see below), whose sum is σ = 267317820. Its totient is φ = 67890208.

The previous prime is 135780443. The next prime is 135780451. The reversal of 135780448 is 844087531.

It is a super-3 number, since 3×135780448³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135780448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135780443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121538 + ... + 2121601.

It is an arithmetic number, because the mean of its divisors is an integer number (22276485).

Almost surely, 2^135780448 is an apocalyptic number.

It is an amenable number.

135780448 is a deficient number, since it is larger than the sum of its proper divisors (131537372).

135780448 is an equidigital number, since it uses as much as digits as its factorization.

135780448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243149 (or 4243141 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 135780448 is about 11652.4867732171. The cubic root of 135780448 is about 513.9794386845.

The spelling of 135780448 in words is "one hundred thirty-five million, seven hundred eighty thousand, four hundred forty-eight".