135556679 has 8 divisors (see below), whose sum is σ = 139128192. Its totient is φ = 132031480.

The previous prime is 135556661. The next prime is 135556699. The reversal of 135556679 is 976655531.

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 135556679 - 2⁸ = 135556423 is a prime.

It is a super-2 number, since 2×135556679² = 36751226443018082, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135556699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5609 + ... + 17394.

It is an arithmetic number, because the mean of its divisors is an integer number (17391024).

Almost surely, 2^135556679 is an apocalyptic number.

135556679 is a deficient number, since it is larger than the sum of its proper divisors (3571513).

135556679 is an equidigital number, since it uses as much as digits as its factorization.

135556679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23157.

The product of its digits is 850500, while the sum is 47.

The square root of 135556679 is about 11642.8810437967. The cubic root of 135556679 is about 513.6969338377.

The spelling of 135556679 in words is "one hundred thirty-five million, five hundred fifty-six thousand, six hundred seventy-nine".