135890345 has 4 divisors (see below), whose sum is σ = 163068420. Its totient is φ = 108712272.

The previous prime is 135890323. The next prime is 135890351. The reversal of 135890345 is 543098531.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34445161 + 101445184 = 5869^2 + 10072^2 .

It is a cyclic number.

It is not a de Polignac number, because 135890345 - 2¹⁸ = 135628201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135890299 and 135890308.

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 3 ways as a sum of consecutive naturals, for example, 13589030 + ... + 13589039.

It is an arithmetic number, because the mean of its divisors is an integer number (40767105).

Almost surely, 2^135890345 is an apocalyptic number.

It is an amenable number.

135890345 is a deficient number, since it is larger than the sum of its proper divisors (27178075).

135890345 is an equidigital number, since it uses as much as digits as its factorization.

135890345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27178074.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 135890345 is about 11657.2014222969. The cubic root of 135890345 is about 514.1180682810.

The spelling of 135890345 in words is "one hundred thirty-five million, eight hundred ninety thousand, three hundred forty-five".