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126031201 is a prime number
BaseRepresentation
bin1111000001100…
…01010101100001
322210011001022021
413200301111201
5224230444301
620301141441
73060150622
oct740612541
9283131267
10126031201
116516111a
123625a881
132015919a
1412a49a49
15b0e78a1
hex7831561

126031201 has 2 divisors, whose sum is σ = 126031202. Its totient is φ = 126031200.

The previous prime is 126031189. The next prime is 126031231. The reversal of 126031201 is 102130621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 55890576 = 8375^2 + 7476^2 .

It is a cyclic number.

It is not a de Polignac number, because 126031201 - 29 = 126030689 is a prime.

It is not a weakly prime, because it can be changed into another prime (126031231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63015600 + 63015601.

It is an arithmetic number, because the mean of its divisors is an integer number (63015601).

Almost surely, 2126031201 is an apocalyptic number.

It is an amenable number.

126031201 is a deficient number, since it is larger than the sum of its proper divisors (1).

126031201 is an equidigital number, since it uses as much as digits as its factorization.

126031201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 126031201 is about 11226.3618772958. The cubic root of 126031201 is about 501.3711710095.

Adding to 126031201 its reverse (102130621), we get a palindrome (228161822).

The spelling of 126031201 in words is "one hundred twenty-six million, thirty-one thousand, two hundred one".