126617573 has 2 divisors, whose sum is σ = 126617574. Its totient is φ = 126617572.

The previous prime is 126617527. The next prime is 126617587. The reversal of 126617573 is 375716621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116165284 + 10452289 = 10778^2 + 3233^2 .

It is a cyclic number.

It is not a de Polignac number, because 126617573 - 2⁸ = 126617317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126617503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63308786 + 63308787.

It is an arithmetic number, because the mean of its divisors is an integer number (63308787).

Almost surely, 2^126617573 is an apocalyptic number.

It is an amenable number.

126617573 is a deficient number, since it is larger than the sum of its proper divisors (1).

126617573 is an equidigital number, since it uses as much as digits as its factorization.

126617573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 126617573 is about 11252.4474226721. The cubic root of 126617573 is about 502.1475270496.

The spelling of 126617573 in words is "one hundred twenty-six million, six hundred seventeen thousand, five hundred seventy-three".