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142181023967 is a prime number
BaseRepresentation
bin1000010001101010100…
…1100100000011011111
3111120222211200101011122
42010122221210003133
54312141320231332
6145152252441155
713162243522523
oct2043251440337
9446884611148
10142181023967
1155331532794
12236801791bb
131053b6ab318
146c4b169d83
153a72440c12
hex211aa640df

142181023967 has 2 divisors, whose sum is σ = 142181023968. Its totient is φ = 142181023966.

The previous prime is 142181023913. The next prime is 142181023969. The reversal of 142181023967 is 769320181241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142181023967 - 26 = 142181023903 is a prime.

Together with 142181023969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142181023969) 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, 71090511983 + 71090511984.

It is an arithmetic number, because the mean of its divisors is an integer number (71090511984).

Almost surely, 2142181023967 is an apocalyptic number.

142181023967 is a deficient number, since it is larger than the sum of its proper divisors (1).

142181023967 is an equidigital number, since it uses as much as digits as its factorization.

142181023967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 142181023967 in words is "one hundred forty-two billion, one hundred eighty-one million, twenty-three thousand, nine hundred sixty-seven".