164553941 has 2 divisors, whose sum is σ = 164553942. Its totient is φ = 164553940.

The previous prime is 164553913. The next prime is 164553973. The reversal of 164553941 is 149355461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93219025 + 71334916 = 9655^2 + 8446^2 .

It is an emirp because it is prime and its reverse (149355461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164553941 - 2²⁶ = 97445077 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 164553895 and 164553904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164553901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82276970 + 82276971.

It is an arithmetic number, because the mean of its divisors is an integer number (82276971).

Almost surely, 2^164553941 is an apocalyptic number.

It is an amenable number.

164553941 is a deficient number, since it is larger than the sum of its proper divisors (1).

164553941 is an equidigital number, since it uses as much as digits as its factorization.

164553941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 164553941 is about 12827.8580051387. The cubic root of 164553941 is about 547.9859572032.

The spelling of 164553941 in words is "one hundred sixty-four million, five hundred fifty-three thousand, nine hundred forty-one".