168454497 has 4 divisors (see below), whose sum is σ = 224606000. Its totient is φ = 112302996.

The previous prime is 168454493. The next prime is 168454501. The reversal of 168454497 is 794454861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (168454493) and next prime (168454501).

It is not a de Polignac number, because 168454497 - 2² = 168454493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168454493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28075747 + ... + 28075752.

It is an arithmetic number, because the mean of its divisors is an integer number (56151500).

Almost surely, 2^168454497 is an apocalyptic number.

It is an amenable number.

168454497 is a deficient number, since it is larger than the sum of its proper divisors (56151503).

168454497 is an equidigital number, since it uses as much as digits as its factorization.

168454497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56151502.

The product of its digits is 967680, while the sum is 48.

The square root of 168454497 is about 12979.0021573309. The cubic root of 168454497 is about 552.2819756316.

The spelling of 168454497 in words is "one hundred sixty-eight million, four hundred fifty-four thousand, four hundred ninety-seven".