168506963 has 4 divisors (see below), whose sum is σ = 168602328. Its totient is φ = 168411600.

The previous prime is 168506951. The next prime is 168506969. The reversal of 168506963 is 369605861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 369605861 = 137 ⋅2697853.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168506963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168506969) 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 in 3 ways as a sum of consecutive naturals, for example, 44981 + ... + 48582.

It is an arithmetic number, because the mean of its divisors is an integer number (42150582).

Almost surely, 2^168506963 is an apocalyptic number.

168506963 is a deficient number, since it is larger than the sum of its proper divisors (95365).

168506963 is an equidigital number, since it uses as much as digits as its factorization.

168506963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95364.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 168506963 is about 12981.0231877152. The cubic root of 168506963 is about 552.3393066794.

The spelling of 168506963 in words is "one hundred sixty-eight million, five hundred six thousand, nine hundred sixty-three".