168451413 has 16 divisors (see below), whose sum is σ = 242187456. Its totient is φ = 103530240.

The previous prime is 168451399. The next prime is 168451433. The reversal of 168451413 is 314154861.

It is not a de Polignac number, because 168451413 - 2¹³ = 168443221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168451433) 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 15 ways as a sum of consecutive naturals, for example, 34653 + ... + 39213.

It is an arithmetic number, because the mean of its divisors is an integer number (15136716).

Almost surely, 2^168451413 is an apocalyptic number.

168451413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

168451413 is a deficient number, since it is larger than the sum of its proper divisors (73736043).

168451413 is a wasteful number, since it uses less digits than its factorization.

168451413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524.

The product of its digits is 11520, while the sum is 33.

The square root of 168451413 is about 12978.8833495028. The cubic root of 168451413 is about 552.2786052892.

The spelling of 168451413 in words is "one hundred sixty-eight million, four hundred fifty-one thousand, four hundred thirteen".