126375013 has 2 divisors, whose sum is σ = 126375014. Its totient is φ = 126375012.

The previous prime is 126375001. The next prime is 126375037. The reversal of 126375013 is 310573621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126292644 + 82369 = 11238^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 126375013 - 2²¹ = 124277861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126375043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63187506 + 63187507.

It is an arithmetic number, because the mean of its divisors is an integer number (63187507).

Almost surely, 2^126375013 is an apocalyptic number.

It is an amenable number.

126375013 is a deficient number, since it is larger than the sum of its proper divisors (1).

126375013 is an equidigital number, since it uses as much as digits as its factorization.

126375013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 126375013 is about 11241.6641561648. The cubic root of 126375013 is about 501.8266690999.

The spelling of 126375013 in words is "one hundred twenty-six million, three hundred seventy-five thousand, thirteen".