126278039 has 2 divisors, whose sum is σ = 126278040. Its totient is φ = 126278038.

The previous prime is 126278021. The next prime is 126278059. The reversal of 126278039 is 930872621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126278039 - 2²⁴ = 109500823 is a prime.

It is a super-2 number, since 2×126278039² = 31892286267371042, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126277993 and 126278011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126278059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63139019 + 63139020.

It is an arithmetic number, because the mean of its divisors is an integer number (63139020).

Almost surely, 2^126278039 is an apocalyptic number.

126278039 is a deficient number, since it is larger than the sum of its proper divisors (1).

126278039 is an equidigital number, since it uses as much as digits as its factorization.

126278039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 126278039 is about 11237.3501769768. The cubic root of 126278039 is about 501.6982771785.

The spelling of 126278039 in words is "one hundred twenty-six million, two hundred seventy-eight thousand, thirty-nine".