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163141145 = 561534889
BaseRepresentation
bin10011011100101…
…01011000011001
3102100222102120122
421232111120121
5313231004040
624104403025
74020451106
oct1156253031
9370872518
10163141145
11840a83a2
1246776475
1327a5042b
1417949aad
15e4c81b5
hex9b95619

163141145 has 8 divisors (see below), whose sum is σ = 198979080. Its totient is φ = 128373120.

The previous prime is 163141141. The next prime is 163141169. The reversal of 163141145 is 541141361.

163141145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17161 + 163123984 = 131^2 + 12772^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163141145 - 22 = 163141141 is a prime.

It is a super-2 number, since 2×1631411452 = 53230066383822050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163141141) 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, 267140 + ... + 267749.

It is an arithmetic number, because the mean of its divisors is an integer number (24872385).

Almost surely, 2163141145 is an apocalyptic number.

It is an amenable number.

163141145 is a deficient number, since it is larger than the sum of its proper divisors (35837935).

163141145 is an equidigital number, since it uses as much as digits as its factorization.

163141145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534955.

The product of its digits is 1440, while the sum is 26.

The square root of 163141145 is about 12772.6718035030. The cubic root of 163141145 is about 546.4131828885.

The spelling of 163141145 in words is "one hundred sixty-three million, one hundred forty-one thousand, one hundred forty-five".

Divisors: 1 5 61 305 534889 2674445 32628229 163141145