126507317 has 2 divisors, whose sum is σ = 126507318. Its totient is φ = 126507316.

The previous prime is 126507313. The next prime is 126507341. The reversal of 126507317 is 713705621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68046001 + 58461316 = 8249^2 + 7646^2 .

It is an emirp because it is prime and its reverse (713705621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126507317 - 2² = 126507313 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126507313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63253658 + 63253659.

It is an arithmetic number, because the mean of its divisors is an integer number (63253659).

Almost surely, 2^126507317 is an apocalyptic number.

It is an amenable number.

126507317 is a deficient number, since it is larger than the sum of its proper divisors (1).

126507317 is an equidigital number, since it uses as much as digits as its factorization.

126507317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 126507317 is about 11247.5471548245. The cubic root of 126507317 is about 502.0017314480.

The spelling of 126507317 in words is "one hundred twenty-six million, five hundred seven thousand, three hundred seventeen".