163145454 has 8 divisors (see below), whose sum is σ = 326290920. Its totient is φ = 54381816.

The previous prime is 163145449. The next prime is 163145459. The reversal of 163145454 is 454541361.

It is an interprime number because it is at equal distance from previous prime (163145449) and next prime (163145459).

It is a sphenic number, since it is the product of 3 distinct primes.

163145454 is an admirable number.

It is a super-2 number, since 2×163145454² = 53232878321732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163145459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13595449 + ... + 13595460.

It is an arithmetic number, because the mean of its divisors is an integer number (40786365).

Almost surely, 2^163145454 is an apocalyptic number.

163145454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163145454 is a wasteful number, since it uses less digits than its factorization.

163145454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27190914.

The product of its digits is 28800, while the sum is 33.

The square root of 163145454 is about 12772.8404828370. The cubic root of 163145454 is about 546.4179935974.

The spelling of 163145454 in words is "one hundred sixty-three million, one hundred forty-five thousand, four hundred fifty-four".