126525439 has 2 divisors, whose sum is σ = 126525440. Its totient is φ = 126525438.

The previous prime is 126525409. The next prime is 126525473. The reversal of 126525439 is 934525621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126525439 - 2¹⁹ = 126001151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126525398 and 126525407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126525409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63262719 + 63262720.

It is an arithmetic number, because the mean of its divisors is an integer number (63262720).

Almost surely, 2^126525439 is an apocalyptic number.

126525439 is a deficient number, since it is larger than the sum of its proper divisors (1).

126525439 is an equidigital number, since it uses as much as digits as its factorization.

126525439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 126525439 is about 11248.3527238436. The cubic root of 126525439 is about 502.0257006572.

The spelling of 126525439 in words is "one hundred twenty-six million, five hundred twenty-five thousand, four hundred thirty-nine".