135569593 has 2 divisors, whose sum is σ = 135569594. Its totient is φ = 135569592.

The previous prime is 135569563. The next prime is 135569597. The reversal of 135569593 is 395965531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 48483369 = 9332^2 + 6963^2 .

It is a cyclic number.

It is not a de Polignac number, because 135569593 - 2¹⁷ = 135438521 is a prime.

It is a super-2 number, since 2×135569593² = 36758229092371298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135569597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67784796 + 67784797.

It is an arithmetic number, because the mean of its divisors is an integer number (67784797).

Almost surely, 2^135569593 is an apocalyptic number.

It is an amenable number.

135569593 is a deficient number, since it is larger than the sum of its proper divisors (1).

135569593 is an equidigital number, since it uses as much as digits as its factorization.

135569593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 546750, while the sum is 46.

The square root of 135569593 is about 11643.4356184075. The cubic root of 135569593 is about 513.7132460096.

The spelling of 135569593 in words is "one hundred thirty-five million, five hundred sixty-nine thousand, five hundred ninety-three".