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164155253 is a prime number
BaseRepresentation
bin10011100100011…
…00111101110101
3102102212221200012
421302030331311
5314010432003
624142230005
74032203513
oct1162147565
9372787605
10164155253
11847302a9
1246b85305
1328016bb2
1417b314b3
15e6288d8
hex9c8cf75

164155253 has 2 divisors, whose sum is σ = 164155254. Its totient is φ = 164155252.

The previous prime is 164155241. The next prime is 164155297. The reversal of 164155253 is 352551461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163277284 + 877969 = 12778^2 + 937^2 .

It is an emirp because it is prime and its reverse (352551461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164155253 - 220 = 163106677 is a prime.

It is equal to p9194342 and since 164155253 and 9194342 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164155223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82077626 + 82077627.

It is an arithmetic number, because the mean of its divisors is an integer number (82077627).

Almost surely, 2164155253 is an apocalyptic number.

It is an amenable number.

164155253 is a deficient number, since it is larger than the sum of its proper divisors (1).

164155253 is an equidigital number, since it uses as much as digits as its factorization.

164155253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 164155253 is about 12812.3086522297. The cubic root of 164155253 is about 547.5430383937.

The spelling of 164155253 in words is "one hundred sixty-four million, one hundred fifty-five thousand, two hundred fifty-three".