168031445 has 16 divisors (see below), whose sum is σ = 211341312. Its totient is φ = 128008320.

The previous prime is 168031433. The next prime is 168031453. The reversal of 168031445 is 544130861.

168031445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168031445 - 2⁸ = 168031189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23660 + ... + 29930.

It is an arithmetic number, because the mean of its divisors is an integer number (13208832).

Almost surely, 2^168031445 is an apocalyptic number.

It is an amenable number.

168031445 is a deficient number, since it is larger than the sum of its proper divisors (43309867).

168031445 is a wasteful number, since it uses less digits than its factorization.

168031445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 168031445 is about 12962.6943572700. The cubic root of 168031445 is about 551.8192594661.

The spelling of 168031445 in words is "one hundred sixty-eight million, thirty-one thousand, four hundred forty-five".