126386069 has 2 divisors, whose sum is σ = 126386070. Its totient is φ = 126386068.

The previous prime is 126386063. The next prime is 126386087. The reversal of 126386069 is 960683621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79299025 + 47087044 = 8905^2 + 6862^2 .

It is an emirp because it is prime and its reverse (960683621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126386069 is a prime.

It is a super-2 number, since 2×126386069² = 31946876874545522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126386063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63193034 + 63193035.

It is an arithmetic number, because the mean of its divisors is an integer number (63193035).

Almost surely, 2^126386069 is an apocalyptic number.

It is an amenable number.

126386069 is a deficient number, since it is larger than the sum of its proper divisors (1).

126386069 is an equidigital number, since it uses as much as digits as its factorization.

126386069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 126386069 is about 11242.1558875511. The cubic root of 126386069 is about 501.8413028837.

The spelling of 126386069 in words is "one hundred twenty-six million, three hundred eighty-six thousand, sixty-nine".