135526019 has 8 divisors (see below), whose sum is σ = 140706720. Its totient is φ = 130379200.

The previous prime is 135526003. The next prime is 135526021. The reversal of 135526019 is 910625531.

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 135526019 - 2⁴ = 135526003 is a prime.

It is a super-2 number, since 2×135526019² = 36734603651976722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135526049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167 + ... + 16464.

It is an arithmetic number, because the mean of its divisors is an integer number (17588340).

Almost surely, 2^135526019 is an apocalyptic number.

135526019 is a deficient number, since it is larger than the sum of its proper divisors (5180701).

135526019 is a wasteful number, since it uses less digits than its factorization.

135526019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16941.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 135526019 is about 11641.5642849232. The cubic root of 135526019 is about 513.6582018581.

The spelling of 135526019 in words is "one hundred thirty-five million, five hundred twenty-six thousand, nineteen".