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12437501 is a prime number
BaseRepresentation
bin101111011100…
…011111111101
3212101220001012
4233130133331
511141000001
61122325005
7210500636
oct57343775
925356035
1012437501
11702552a
1241b9765
13276618b
14191a88d
15115a2bb
hexbdc7fd

12437501 has 2 divisors, whose sum is σ = 12437502. Its totient is φ = 12437500.

The previous prime is 12437471. The next prime is 12437507. The reversal of 12437501 is 10573421.

12437501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7284601 + 5152900 = 2699^2 + 2270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12437501 is a prime.

It is a super-2 number, since 2×124375012 = 309382862250002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12437507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6218750 + 6218751.

It is an arithmetic number, because the mean of its divisors is an integer number (6218751).

Almost surely, 212437501 is an apocalyptic number.

It is an amenable number.

12437501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12437501 is an equidigital number, since it uses as much as digits as its factorization.

12437501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12437501 is about 3526.6841366927. The cubic root of 12437501 is about 231.6920023588.

The spelling of 12437501 in words is "twelve million, four hundred thirty-seven thousand, five hundred one".