126142073 has 2 divisors, whose sum is σ = 126142074. Its totient is φ = 126142072.

The previous prime is 126142061. The next prime is 126142109. The reversal of 126142073 is 370241621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110397049 + 15745024 = 10507^2 + 3968^2 .

It is an emirp because it is prime and its reverse (370241621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126142073 - 2¹⁴ = 126125689 is a prime.

It is not a weakly prime, because it can be changed into another prime (126142043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63071036 + 63071037.

It is an arithmetic number, because the mean of its divisors is an integer number (63071037).

Almost surely, 2^126142073 is an apocalyptic number.

It is an amenable number.

126142073 is a deficient number, since it is larger than the sum of its proper divisors (1).

126142073 is an equidigital number, since it uses as much as digits as its factorization.

126142073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 126142073 is about 11231.2988118027. The cubic root of 126142073 is about 501.5181497772.

Adding to 126142073 its reverse (370241621), we get a palindrome (496383694).

It can be divided in two parts, 1261 and 42073, that added together give a palindrome (43334).

The spelling of 126142073 in words is "one hundred twenty-six million, one hundred forty-two thousand, seventy-three".