135471593 has 2 divisors, whose sum is σ = 135471594. Its totient is φ = 135471592.

The previous prime is 135471571. The next prime is 135471647. The reversal of 135471593 is 395174531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97673689 + 37797904 = 9883^2 + 6148^2 .

It is a cyclic number.

It is not a de Polignac number, because 135471593 - 2¹⁶ = 135406057 is a prime.

It is a super-3 number, since 3×135471593³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (135471533) by changing a digit.

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 as a sum of consecutive naturals, namely, 67735796 + 67735797.

It is an arithmetic number, because the mean of its divisors is an integer number (67735797).

Almost surely, 2^135471593 is an apocalyptic number.

It is an amenable number.

135471593 is a deficient number, since it is larger than the sum of its proper divisors (1).

135471593 is an equidigital number, since it uses as much as digits as its factorization.

135471593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 135471593 is about 11639.2264777347. The cubic root of 135471593 is about 513.5894325185.

The spelling of 135471593 in words is "one hundred thirty-five million, four hundred seventy-one thousand, five hundred ninety-three".