135556678 has 32 divisors (see below), whose sum is σ = 223257600. Its totient is φ = 61500384.

The previous prime is 135556661. The next prime is 135556699. The reversal of 135556678 is 876655531.

It is a super-2 number, since 2×135556678² = 36751225900791368, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 93483 + ... + 94921.

It is an arithmetic number, because the mean of its divisors is an integer number (6976800).

Almost surely, 2^135556678 is an apocalyptic number.

135556678 is a deficient number, since it is larger than the sum of its proper divisors (87700922).

135556678 is a wasteful number, since it uses less digits than its factorization.

135556678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its digits is 756000, while the sum is 46.

The square root of 135556678 is about 11642.8810008520. The cubic root of 135556678 is about 513.6969325745.

The spelling of 135556678 in words is "one hundred thirty-five million, five hundred fifty-six thousand, six hundred seventy-eight".