126261523 has 2 divisors, whose sum is σ = 126261524. Its totient is φ = 126261522.

The previous prime is 126261511. The next prime is 126261539. The reversal of 126261523 is 325162621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126261523 - 2¹³ = 126253331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126261491 and 126261500.

It is not a weakly prime, because it can be changed into another prime (126261323) 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, 63130761 + 63130762.

It is an arithmetic number, because the mean of its divisors is an integer number (63130762).

Almost surely, 2^126261523 is an apocalyptic number.

126261523 is a deficient number, since it is larger than the sum of its proper divisors (1).

126261523 is an equidigital number, since it uses as much as digits as its factorization.

126261523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 126261523 is about 11236.6152821924. The cubic root of 126261523 is about 501.6764037261.

The spelling of 126261523 in words is "one hundred twenty-six million, two hundred sixty-one thousand, five hundred twenty-three".