126939349 has 2 divisors, whose sum is σ = 126939350. Its totient is φ = 126939348.

The previous prime is 126939331. The next prime is 126939377. The reversal of 126939349 is 943939621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117831025 + 9108324 = 10855^2 + 3018^2 .

It is a cyclic number.

It is not a de Polignac number, because 126939349 - 2¹¹ = 126937301 is a prime.

It is a super-2 number, since 2×126939349² = 32227196649087602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126939299 and 126939308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126939049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63469674 + 63469675.

It is an arithmetic number, because the mean of its divisors is an integer number (63469675).

Almost surely, 2^126939349 is an apocalyptic number.

It is an amenable number.

126939349 is a deficient number, since it is larger than the sum of its proper divisors (1).

126939349 is an equidigital number, since it uses as much as digits as its factorization.

126939349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 46.

The square root of 126939349 is about 11266.7363952477. The cubic root of 126939349 is about 502.5725400422.

The spelling of 126939349 in words is "one hundred twenty-six million, nine hundred thirty-nine thousand, three hundred forty-nine".