126513035647 has 2 divisors, whose sum is σ = 126513035648. Its totient is φ = 126513035646.

The previous prime is 126513035587. The next prime is 126513035653. The reversal of 126513035647 is 746530315621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126513035647 - 2²³ = 126504647039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126513036647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256517823 + 63256517824.

It is an arithmetic number, because the mean of its divisors is an integer number (63256517824).

Almost surely, 2^126513035647 is an apocalyptic number.

126513035647 is a deficient number, since it is larger than the sum of its proper divisors (1).

126513035647 is an equidigital number, since it uses as much as digits as its factorization.

126513035647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 126513035647 in words is "one hundred twenty-six billion, five hundred thirteen million, thirty-five thousand, six hundred forty-seven".