126440371 has 2 divisors, whose sum is σ = 126440372. Its totient is φ = 126440370.

The previous prime is 126440317. The next prime is 126440389. The reversal of 126440371 is 173044621.

Together with previous prime (126440317) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (173044621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126440371 - 2¹⁷ = 126309299 is a prime.

It is not a weakly prime, because it can be changed into another prime (126440771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63220185 + 63220186.

It is an arithmetic number, because the mean of its divisors is an integer number (63220186).

Almost surely, 2^126440371 is an apocalyptic number.

126440371 is a deficient number, since it is larger than the sum of its proper divisors (1).

126440371 is an equidigital number, since it uses as much as digits as its factorization.

126440371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 126440371 is about 11244.5707343589. The cubic root of 126440371 is about 501.9131649298.

Adding to 126440371 its reverse (173044621), we get a palindrome (299484992).

The spelling of 126440371 in words is "one hundred twenty-six million, four hundred forty thousand, three hundred seventy-one".