126839077 has 2 divisors, whose sum is σ = 126839078. Its totient is φ = 126839076.

The previous prime is 126839039. The next prime is 126839087. The reversal of 126839077 is 770938621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107205316 + 19633761 = 10354^2 + 4431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126839077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126839087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63419538 + 63419539.

It is an arithmetic number, because the mean of its divisors is an integer number (63419539).

Almost surely, 2^126839077 is an apocalyptic number.

It is an amenable number.

126839077 is a deficient number, since it is larger than the sum of its proper divisors (1).

126839077 is an equidigital number, since it uses as much as digits as its factorization.

126839077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 126839077 is about 11262.2856028428. The cubic root of 126839077 is about 502.4401743913.

The spelling of 126839077 in words is "one hundred twenty-six million, eight hundred thirty-nine thousand, seventy-seven".