135168463 has 4 divisors (see below), whose sum is σ = 139528768. Its totient is φ = 130808160.

The previous prime is 135168443. The next prime is 135168487. The reversal of 135168463 is 364861531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364861531 = 17 ⋅21462443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135168463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135168443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180106 + ... + 2180167.

It is an arithmetic number, because the mean of its divisors is an integer number (34882192).

Almost surely, 2^135168463 is an apocalyptic number.

135168463 is a deficient number, since it is larger than the sum of its proper divisors (4360305).

135168463 is an equidigital number, since it uses as much as digits as its factorization.

135168463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360304.

The product of its digits is 51840, while the sum is 37.

The square root of 135168463 is about 11626.1972716792. The cubic root of 135168463 is about 513.2060787710.

The spelling of 135168463 in words is "one hundred thirty-five million, one hundred sixty-eight thousand, four hundred sixty-three".