135528619 has 2 divisors, whose sum is σ = 135528620. Its totient is φ = 135528618.

The previous prime is 135528593. The next prime is 135528649. The reversal of 135528619 is 916825531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135528619 - 2¹⁵ = 135495851 is a prime.

It is a super-2 number, since 2×135528619² = 36736013136094322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135528649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67764309 + 67764310.

It is an arithmetic number, because the mean of its divisors is an integer number (67764310).

Almost surely, 2^135528619 is an apocalyptic number.

135528619 is a deficient number, since it is larger than the sum of its proper divisors (1).

135528619 is an equidigital number, since it uses as much as digits as its factorization.

135528619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 135528619 is about 11641.6759532294. The cubic root of 135528619 is about 513.6614865970.

The spelling of 135528619 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, six hundred nineteen".