126358769 has 2 divisors, whose sum is σ = 126358770. Its totient is φ = 126358768.

The previous prime is 126358753. The next prime is 126358819. The reversal of 126358769 is 967853621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 27952369 = 9920^2 + 5287^2 .

It is a cyclic number.

It is not a de Polignac number, because 126358769 - 2⁴ = 126358753 is a prime.

It is a super-2 number, since 2×126358769² = 31933077006390722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126358669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63179384 + 63179385.

It is an arithmetic number, because the mean of its divisors is an integer number (63179385).

Almost surely, 2^126358769 is an apocalyptic number.

It is an amenable number.

126358769 is a deficient number, since it is larger than the sum of its proper divisors (1).

126358769 is an equidigital number, since it uses as much as digits as its factorization.

126358769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 126358769 is about 11240.9416420512. The cubic root of 126358769 is about 501.8051669018.

The spelling of 126358769 in words is "one hundred twenty-six million, three hundred fifty-eight thousand, seven hundred sixty-nine".