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12495074309 is a prime number
BaseRepresentation
bin10111010001100001…
…11011010000000101
31012020210200112121222
423220300323100011
5201042214334214
65423512450125
7621432244034
oct135060732005
935223615558
1012495074309
1153321642a3
1225086a9945
1312418b38c3
1486769071b
154d1e6438e
hex2e8c3b405

12495074309 has 2 divisors, whose sum is σ = 12495074310. Its totient is φ = 12495074308.

The previous prime is 12495074287. The next prime is 12495074353. The reversal of 12495074309 is 90347059421.

It is an a-pointer prime, because the next prime (12495074353) can be obtained adding 12495074309 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6753223684 + 5741850625 = 82178^2 + 75775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12495074309 is a prime.

It is a super-2 number, since 2×124950743092 (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 12495074309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12495076309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6247537154 + 6247537155.

It is an arithmetic number, because the mean of its divisors is an integer number (6247537155).

Almost surely, 212495074309 is an apocalyptic number.

It is an amenable number.

12495074309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12495074309 is an equidigital number, since it uses as much as digits as its factorization.

12495074309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 12495074309 in words is "twelve billion, four hundred ninety-five million, seventy-four thousand, three hundred nine".