169945141 has 8 divisors (see below), whose sum is σ = 180431064. Its totient is φ = 159513600.

The previous prime is 169945129. The next prime is 169945163. The reversal of 169945141 is 141549961.

It can be written as a sum of positive squares in 4 ways, for example, as 35153041 + 134792100 = 5929^2 + 11610^2 .

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 169945141 - 2¹¹ = 169943093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169945094 and 169945103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169942141) 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, 7060 + ... + 19741.

It is an arithmetic number, because the mean of its divisors is an integer number (22553883).

Almost surely, 2^169945141 is an apocalyptic number.

It is an amenable number.

169945141 is a deficient number, since it is larger than the sum of its proper divisors (10485923).

169945141 is a wasteful number, since it uses less digits than its factorization.

169945141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27191.

The product of its digits is 38880, while the sum is 40.

The square root of 169945141 is about 13036.3008940420. The cubic root of 169945141 is about 553.9062310073.

The spelling of 169945141 in words is "one hundred sixty-nine million, nine hundred forty-five thousand, one hundred forty-one".