135523417 has 2 divisors, whose sum is σ = 135523418. Its totient is φ = 135523416.

The previous prime is 135523411. The next prime is 135523459. The reversal of 135523417 is 714325531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124791241 + 10732176 = 11171^2 + 3276^2 .

It is an emirp because it is prime and its reverse (714325531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135523417 - 2¹⁹ = 134999129 is a prime.

It is a pancake number, because a pancake can be divided into 135523417 parts by 16463 straight cuts.

It is equal to p_7673422 and since 135523417 and 7673422 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (135523411) 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 as a sum of consecutive naturals, namely, 67761708 + 67761709.

It is an arithmetic number, because the mean of its divisors is an integer number (67761709).

Almost surely, 2^135523417 is an apocalyptic number.

It is an amenable number.

135523417 is a deficient number, since it is larger than the sum of its proper divisors (1).

135523417 is an equidigital number, since it uses as much as digits as its factorization.

135523417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 135523417 is about 11641.4525296459. The cubic root of 135523417 is about 513.6549145503.

Adding to 135523417 its reverse (714325531), we get a palindrome (849848948).

The spelling of 135523417 in words is "one hundred thirty-five million, five hundred twenty-three thousand, four hundred seventeen".