169197941 has 4 divisors (see below), whose sum is σ = 184579584. Its totient is φ = 153816300.

The previous prime is 169197937. The next prime is 169197943. The reversal of 169197941 is 149791961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 169197941 - 2² = 169197937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169197943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7690805 + ... + 7690826.

It is an arithmetic number, because the mean of its divisors is an integer number (46144896).

Almost surely, 2^169197941 is an apocalyptic number.

169197941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

169197941 is a deficient number, since it is larger than the sum of its proper divisors (15381643).

169197941 is a wasteful number, since it uses less digits than its factorization.

169197941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15381642.

The product of its digits is 122472, while the sum is 47.

The square root of 169197941 is about 13007.6108874766. The cubic root of 169197941 is about 553.0932494612.

The spelling of 169197941 in words is "one hundred sixty-nine million, one hundred ninety-seven thousand, nine hundred forty-one".