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180182131 is a prime number
BaseRepresentation
bin10101011110101…
…01110001110011
3110120001012102021
422233111301303
5332111312011
625513532311
74315344223
oct1257256163
9416035367
10180182131
1192787558
1250414097
132b438a5c
1419d04083
1510c42471
hexabd5c73

180182131 has 2 divisors, whose sum is σ = 180182132. Its totient is φ = 180182130.

The previous prime is 180182117. The next prime is 180182147. The reversal of 180182131 is 131281081.

It is a weak prime.

It is an emirp because it is prime and its reverse (131281081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180182131 - 29 = 180181619 is a prime.

It is a super-2 number, since 2×1801821312 = 64931200663402322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180182096 and 180182105.

It is not a weakly prime, because it can be changed into another prime (180182831) 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, 90091065 + 90091066.

It is an arithmetic number, because the mean of its divisors is an integer number (90091066).

Almost surely, 2180182131 is an apocalyptic number.

180182131 is a deficient number, since it is larger than the sum of its proper divisors (1).

180182131 is an equidigital number, since it uses as much as digits as its factorization.

180182131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 180182131 is about 13423.1937704855. The cubic root of 180182131 is about 564.8119885047.

The spelling of 180182131 in words is "one hundred eighty million, one hundred eighty-two thousand, one hundred thirty-one".