126028493 has 2 divisors, whose sum is σ = 126028494. Its totient is φ = 126028492.

The previous prime is 126028489. The next prime is 126028499. The reversal of 126028493 is 394820621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125507209 + 521284 = 11203^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 126028493 - 2² = 126028489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126028499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63014246 + 63014247.

It is an arithmetic number, because the mean of its divisors is an integer number (63014247).

Almost surely, 2^126028493 is an apocalyptic number.

It is an amenable number.

126028493 is a deficient number, since it is larger than the sum of its proper divisors (1).

126028493 is an equidigital number, since it uses as much as digits as its factorization.

126028493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 126028493 is about 11226.2412676728. The cubic root of 126028493 is about 501.3675800393.

The spelling of 126028493 in words is "one hundred twenty-six million, twenty-eight thousand, four hundred ninety-three".