135427657 has 8 divisors (see below), whose sum is σ = 141750720. Its totient is φ = 129140880.

The previous prime is 135427631. The next prime is 135427673. The reversal of 135427657 is 756724531.

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 135427657 - 2⁷ = 135427529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135427057) 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, 1282 + ... + 16507.

It is an arithmetic number, because the mean of its divisors is an integer number (17718840).

Almost surely, 2^135427657 is an apocalyptic number.

It is an amenable number.

135427657 is a deficient number, since it is larger than the sum of its proper divisors (6323063).

135427657 is a wasteful number, since it uses less digits than its factorization.

135427657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18143.

The product of its digits is 176400, while the sum is 40.

The square root of 135427657 is about 11637.3389140301. The cubic root of 135427657 is about 513.5339042593.

The spelling of 135427657 in words is "one hundred thirty-five million, four hundred twenty-seven thousand, six hundred fifty-seven".