126436573 has 2 divisors, whose sum is σ = 126436574. Its totient is φ = 126436572.

The previous prime is 126436559. The next prime is 126436601. The reversal of 126436573 is 375634621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76352644 + 50083929 = 8738^2 + 7077^2 .

It is a cyclic number.

It is not a de Polignac number, because 126436573 - 2²¹ = 124339421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126436273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63218286 + 63218287.

It is an arithmetic number, because the mean of its divisors is an integer number (63218287).

Almost surely, 2^126436573 is an apocalyptic number.

It is an amenable number.

126436573 is a deficient number, since it is larger than the sum of its proper divisors (1).

126436573 is an equidigital number, since it uses as much as digits as its factorization.

126436573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 37.

The square root of 126436573 is about 11244.4018515882. The cubic root of 126436573 is about 501.9081394113.

The spelling of 126436573 in words is "one hundred twenty-six million, four hundred thirty-six thousand, five hundred seventy-three".