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181325323 is a prime number
BaseRepresentation
bin10101100111011…
…00111000001011
3110122012021120201
422303230320023
5332404402243
625554233031
74331145154
oct1263547013
9418167521
10181325323
1193398443
1250885777
132b7491ba
141a12092b
1510dbb04d
hexacece0b

181325323 has 2 divisors, whose sum is σ = 181325324. Its totient is φ = 181325322.

The previous prime is 181325321. The next prime is 181325327. The reversal of 181325323 is 323523181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 181325323 - 21 = 181325321 is a prime.

It is a super-2 number, since 2×1813253232 = 65757745522108658, which contains 22 as substring.

Together with 181325321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 181325291 and 181325300.

It is not a weakly prime, because it can be changed into another prime (181325321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90662661 + 90662662.

It is an arithmetic number, because the mean of its divisors is an integer number (90662662).

Almost surely, 2181325323 is an apocalyptic number.

181325323 is a deficient number, since it is larger than the sum of its proper divisors (1).

181325323 is an equidigital number, since it uses as much as digits as its factorization.

181325323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 181325323 is about 13465.7091532529. The cubic root of 181325323 is about 566.0039820003.

The spelling of 181325323 in words is "one hundred eighty-one million, three hundred twenty-five thousand, three hundred twenty-three".