135816426 has 40 divisors (see below), whose sum is σ = 317569824. Its totient is φ = 43302600.

The previous prime is 135816413. The next prime is 135816433. The reversal of 135816426 is 624618531.

It is a happy number.

135816426 is a `hidden beast` number, since 1 + 3 + 5 + 8 + 1 + 642 + 6 = 666.

It is a super-2 number, since 2×135816426² = 36892203142826952, which contains 22 as substring.

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 19 ways as a sum of consecutive naturals, for example, 14500 + ... + 21951.

Almost surely, 2^135816426 is an apocalyptic number.

135816426 is an abundant number, since it is smaller than the sum of its proper divisors (181753398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135816426 is a wasteful number, since it uses less digits than its factorization.

135816426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36488 (or 36479 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 135816426 is about 11654.0304616043. The cubic root of 135816426 is about 514.0248313742.

The spelling of 135816426 in words is "one hundred thirty-five million, eight hundred sixteen thousand, four hundred twenty-six".