135717457 has 8 divisors (see below), whose sum is σ = 142188480. Its totient is φ = 129294000.

The previous prime is 135717451. The next prime is 135717481. The reversal of 135717457 is 754717531.

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 135717457 - 2¹¹ = 135715409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135717451) 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 in 7 ways as a sum of consecutive naturals, for example, 5982 + ... + 17527.

It is an arithmetic number, because the mean of its divisors is an integer number (17773560).

Almost surely, 2^135717457 is an apocalyptic number.

It is an amenable number.

135717457 is a deficient number, since it is larger than the sum of its proper divisors (6471023).

135717457 is a wasteful number, since it uses less digits than its factorization.

135717457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23783.

The product of its digits is 102900, while the sum is 40.

The square root of 135717457 is about 11649.7835602212. The cubic root of 135717457 is about 513.8999449449.

The spelling of 135717457 in words is "one hundred thirty-five million, seven hundred seventeen thousand, four hundred fifty-seven".