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12874201381 is a prime number
BaseRepresentation
bin10111111110101110…
…01011100100100101
31020020020002012012101
423333113023210211
5202331243421011
65525254452101
7634014622546
oct137727134445
936206065171
1012874201381
115507173058
1225b3664031
1312a22c7652
148a1b804cd
155053a32c1
hex2ff5cb925

12874201381 has 2 divisors, whose sum is σ = 12874201382. Its totient is φ = 12874201380.

The previous prime is 12874201273. The next prime is 12874201399. The reversal of 12874201381 is 18310247821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10019009025 + 2855192356 = 100095^2 + 53434^2 .

It is a cyclic number.

It is not a de Polignac number, because 12874201381 - 27 = 12874201253 is a prime.

It is a super-2 number, since 2×128742013812 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12874201381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12874201181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437100690 + 6437100691.

It is an arithmetic number, because the mean of its divisors is an integer number (6437100691).

Almost surely, 212874201381 is an apocalyptic number.

It is an amenable number.

12874201381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12874201381 is an equidigital number, since it uses as much as digits as its factorization.

12874201381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 12874201381 in words is "twelve billion, eight hundred seventy-four million, two hundred one thousand, three hundred eighty-one".