135071785 has 8 divisors (see below), whose sum is σ = 162154440. Its totient is φ = 108011904.

The previous prime is 135071777. The next prime is 135071791. The reversal of 135071785 is 587170531.

It can be written as a sum of positive squares in 4 ways, for example, as 61042969 + 74028816 = 7813^2 + 8604^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 135071785 - 2³ = 135071777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12861 + ... + 20869.

It is an arithmetic number, because the mean of its divisors is an integer number (20269305).

Almost surely, 2^135071785 is an apocalyptic number.

It is an amenable number.

135071785 is a deficient number, since it is larger than the sum of its proper divisors (27082655).

135071785 is an equidigital number, since it uses as much as digits as its factorization.

135071785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11387.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 135071785 is about 11622.0387626268. The cubic root of 135071785 is about 513.0836942790.

The spelling of 135071785 in words is "one hundred thirty-five million, seventy-one thousand, seven hundred eighty-five".