168425207 has 4 divisors (see below), whose sum is σ = 169080816. Its totient is φ = 167769600.

The previous prime is 168425189. The next prime is 168425237. The reversal of 168425207 is 702524861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702524861 = 61 ⋅11516801.

It is not a de Polignac number, because 168425207 - 2⁶ = 168425143 is a prime.

It is a super-3 number, since 3×168425207³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168425237) 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, 327419 + ... + 327932.

It is an arithmetic number, because the mean of its divisors is an integer number (42270204).

Almost surely, 2^168425207 is an apocalyptic number.

168425207 is a deficient number, since it is larger than the sum of its proper divisors (655609).

168425207 is an equidigital number, since it uses as much as digits as its factorization.

168425207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655608.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 168425207 is about 12977.8737472669. The cubic root of 168425207 is about 552.2499644615.

The spelling of 168425207 in words is "one hundred sixty-eight million, four hundred twenty-five thousand, two hundred seven".