168982454 has 4 divisors (see below), whose sum is σ = 253473684. Its totient is φ = 84491226.

The previous prime is 168982453. The next prime is 168982459. The reversal of 168982454 is 454289861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454289861 = 17 ⋅26722933.

It is a junction number, because it is equal to n+sod(n) for n = 168982399 and 168982408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168982453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42245612 + ... + 42245615.

It is an arithmetic number, because the mean of its divisors is an integer number (63368421).

Almost surely, 2^168982454 is an apocalyptic number.

168982454 is a deficient number, since it is larger than the sum of its proper divisors (84491230).

168982454 is an equidigital number, since it uses as much as digits as its factorization.

168982454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84491229.

The product of its digits is 552960, while the sum is 47.

The square root of 168982454 is about 12999.3251363292. The cubic root of 168982454 is about 552.8583470010.

The spelling of 168982454 in words is "one hundred sixty-eight million, nine hundred eighty-two thousand, four hundred fifty-four".