135556126 has 4 divisors (see below), whose sum is σ = 203334192. Its totient is φ = 67778062.

The previous prime is 135556103. The next prime is 135556129. The reversal of 135556126 is 621655531.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×135556126² = 36750926592255752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135556091 and 135556100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135556129) 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 as a sum of consecutive naturals, namely, 33889030 + ... + 33889033.

It is an arithmetic number, because the mean of its divisors is an integer number (50833548).

Almost surely, 2^135556126 is an apocalyptic number.

135556126 is a deficient number, since it is larger than the sum of its proper divisors (67778066).

135556126 is an equidigital number, since it uses as much as digits as its factorization.

135556126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67778065.

The product of its digits is 27000, while the sum is 34.

The square root of 135556126 is about 11642.8572953550. The cubic root of 135556126 is about 513.6962352989.

The spelling of 135556126 in words is "one hundred thirty-five million, five hundred fifty-six thousand, one hundred twenty-six".