135680245 has 8 divisors (see below), whose sum is σ = 162933120. Its totient is φ = 108466320.

The previous prime is 135680239. The next prime is 135680249. The reversal of 135680245 is 542086531.

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

It is not a de Polignac number, because 135680245 - 2¹¹ = 135678197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135680245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135680249) 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, 1425 + ... + 16534.

It is an arithmetic number, because the mean of its divisors is an integer number (20366640).

Almost surely, 2^135680245 is an apocalyptic number.

It is an amenable number.

135680245 is a deficient number, since it is larger than the sum of its proper divisors (27252875).

135680245 is a wasteful number, since it uses less digits than its factorization.

135680245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19475.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 135680245 is about 11648.1863395123. The cubic root of 135680245 is about 513.8529723760.

The spelling of 135680245 in words is "one hundred thirty-five million, six hundred eighty thousand, two hundred forty-five".