126357797 has 2 divisors, whose sum is σ = 126357798. Its totient is φ = 126357796.

The previous prime is 126357773. The next prime is 126357799. The reversal of 126357797 is 797753621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105555076 + 20802721 = 10274^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 126357797 - 2¹⁰ = 126356773 is a prime.

Together with 126357799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126357799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63178898 + 63178899.

It is an arithmetic number, because the mean of its divisors is an integer number (63178899).

Almost surely, 2^126357797 is an apocalyptic number.

It is an amenable number.

126357797 is a deficient number, since it is larger than the sum of its proper divisors (1).

126357797 is an equidigital number, since it uses as much as digits as its factorization.

126357797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 555660, while the sum is 47.

The square root of 126357797 is about 11240.8984071559. The cubic root of 126357797 is about 501.8038802060.

The spelling of 126357797 in words is "one hundred twenty-six million, three hundred fifty-seven thousand, seven hundred ninety-seven".