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12974251 is a prime number
BaseRepresentation
bin110001011111…
…100010101011
3220102011022211
4301133202223
511310134001
61142025551
7215164543
oct61374253
926364284
1012974251
117361824
1244182b7
1328c3594
141a1a323
151214351
hexc5f8ab

12974251 has 2 divisors, whose sum is σ = 12974252. Its totient is φ = 12974250.

The previous prime is 12974243. The next prime is 12974257. The reversal of 12974251 is 15247921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12974251 - 23 = 12974243 is a prime.

It is a super-2 number, since 2×129742512 = 336662378022002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12974257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487125 + 6487126.

It is an arithmetic number, because the mean of its divisors is an integer number (6487126).

Almost surely, 212974251 is an apocalyptic number.

12974251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12974251 is an equidigital number, since it uses as much as digits as its factorization.

12974251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 12974251 is about 3601.9787617364. The cubic root of 12974251 is about 234.9781238124.

It can be divided in two parts, 12974 and 251, that added together give a square (13225 = 1152).

The spelling of 12974251 in words is "twelve million, nine hundred seventy-four thousand, two hundred fifty-one".