168725419 has 2 divisors, whose sum is σ = 168725420. Its totient is φ = 168725418.

The previous prime is 168725369. The next prime is 168725443. The reversal of 168725419 is 914527861.

168725419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168725419 - 2¹¹ = 168723371 is a prime.

It is a super-2 number, since 2×168725419² = 56936534033451122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168765419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84362709 + 84362710.

It is an arithmetic number, because the mean of its divisors is an integer number (84362710).

Almost surely, 2^168725419 is an apocalyptic number.

168725419 is a deficient number, since it is larger than the sum of its proper divisors (1).

168725419 is an equidigital number, since it uses as much as digits as its factorization.

168725419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 168725419 is about 12989.4348991786. The cubic root of 168725419 is about 552.5778917366.

The spelling of 168725419 in words is "one hundred sixty-eight million, seven hundred twenty-five thousand, four hundred nineteen".