168669241 has 8 divisors (see below), whose sum is σ = 181749960. Its totient is φ = 155603712.

The previous prime is 168669211. The next prime is 168669283. The reversal of 168669241 is 142966861.

It can be written as a sum of positive squares in 4 ways, for example, as 11417641 + 157251600 = 3379^2 + 12540^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 168669241 - 2¹⁵ = 168636473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168669211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31431 + ... + 36403.

It is an arithmetic number, because the mean of its divisors is an integer number (22718745).

Almost surely, 2^168669241 is an apocalyptic number.

It is an amenable number.

168669241 is a deficient number, since it is larger than the sum of its proper divisors (13080719).

168669241 is a wasteful number, since it uses less digits than its factorization.

168669241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595.

The product of its digits is 124416, while the sum is 43.

The square root of 168669241 is about 12987.2722694182. The cubic root of 168669241 is about 552.5165570409.

The spelling of 168669241 in words is "one hundred sixty-eight million, six hundred sixty-nine thousand, two hundred forty-one".