135688546 has 48 divisors (see below), whose sum is σ = 253889856. Its totient is φ = 54087264.

The previous prime is 135688537. The next prime is 135688559. The reversal of 135688546 is 645886531.

It is a super-2 number, since 2×135688546² = 36822763031188232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 135688496 and 135688505.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 82585 + ... + 84211.

It is an arithmetic number, because the mean of its divisors is an integer number (5289372).

Almost surely, 2^135688546 is an apocalyptic number.

135688546 is a deficient number, since it is larger than the sum of its proper divisors (118201310).

135688546 is a wasteful number, since it uses less digits than its factorization.

135688546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1696 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 135688546 is about 11648.5426556286. The cubic root of 135688546 is about 513.8634514416.

The spelling of 135688546 in words is "one hundred thirty-five million, six hundred eighty-eight thousand, five hundred forty-six".