168413263 has 4 divisors (see below), whose sum is σ = 170720368. Its totient is φ = 166106160.

The previous prime is 168413261. The next prime is 168413293. The reversal of 168413263 is 362314861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362314861 = 43 ⋅8425927.

It is a cyclic number.

It is not a de Polignac number, because 168413263 - 2¹ = 168413261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168413261) 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, 1153443 + ... + 1153588.

It is an arithmetic number, because the mean of its divisors is an integer number (42680092).

Almost surely, 2^168413263 is an apocalyptic number.

168413263 is a deficient number, since it is larger than the sum of its proper divisors (2307105).

168413263 is an equidigital number, since it uses as much as digits as its factorization.

168413263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307104.

The product of its digits is 20736, while the sum is 34.

The square root of 168413263 is about 12977.4135712784. The cubic root of 168413263 is about 552.2369097459.

The spelling of 168413263 in words is "one hundred sixty-eight million, four hundred thirteen thousand, two hundred sixty-three".