164178941 has 2 divisors, whose sum is σ = 164178942. Its totient is φ = 164178940.

The previous prime is 164178929. The next prime is 164178967. The reversal of 164178941 is 149871461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147744025 + 16434916 = 12155^2 + 4054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164178941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164198941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82089470 + 82089471.

It is an arithmetic number, because the mean of its divisors is an integer number (82089471).

Almost surely, 2^164178941 is an apocalyptic number.

It is an amenable number.

164178941 is a deficient number, since it is larger than the sum of its proper divisors (1).

164178941 is an equidigital number, since it uses as much as digits as its factorization.

164178941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The square root of 164178941 is about 12813.2330424448. The cubic root of 164178941 is about 547.5693743885.

The spelling of 164178941 in words is "one hundred sixty-four million, one hundred seventy-eight thousand, nine hundred forty-one".