135606619 has 2 divisors, whose sum is σ = 135606620. Its totient is φ = 135606618.

The previous prime is 135606589. The next prime is 135606673. The reversal of 135606619 is 916606531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135606619 - 2⁷ = 135606491 is a prime.

It is a super-2 number, since 2×135606619² = 36778310233222322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135606019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67803309 + 67803310.

It is an arithmetic number, because the mean of its divisors is an integer number (67803310).

Almost surely, 2^135606619 is an apocalyptic number.

135606619 is a deficient number, since it is larger than the sum of its proper divisors (1).

135606619 is an equidigital number, since it uses as much as digits as its factorization.

135606619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 135606619 is about 11645.0255044804. The cubic root of 135606619 is about 513.7600092374.

The spelling of 135606619 in words is "one hundred thirty-five million, six hundred six thousand, six hundred nineteen".