135780537 has 8 divisors (see below), whose sum is σ = 182702080. Its totient is φ = 89689680.

The previous prime is 135780497. The next prime is 135780551. The reversal of 135780537 is 735087531.

135780537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135780537 - 2¹⁰ = 135779513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135780495 and 135780504.

It is not an unprimeable number, because it can be changed into a prime (135780577) 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, 207289 + ... + 207942.

It is an arithmetic number, because the mean of its divisors is an integer number (22837760).

Almost surely, 2^135780537 is an apocalyptic number.

It is an amenable number.

135780537 is a deficient number, since it is larger than the sum of its proper divisors (46921543).

135780537 is a wasteful number, since it uses less digits than its factorization.

135780537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415343.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 135780537 is about 11652.4905921438. The cubic root of 135780537 is about 513.9795509839.

The spelling of 135780537 in words is "one hundred thirty-five million, seven hundred eighty thousand, five hundred thirty-seven".