126959669 has 4 divisors (see below), whose sum is σ = 127012896. Its totient is φ = 126906444.

The previous prime is 126959659. The next prime is 126959671. The reversal of 126959669 is 966959621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966959621 = 41 ⋅23584381.

It is a cyclic number.

It is not a de Polignac number, because 126959669 - 2¹² = 126955573 is a prime.

It is a super-2 number, since 2×126959669² = 32237515105179122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126959669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126959659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22859 + ... + 27864.

It is an arithmetic number, because the mean of its divisors is an integer number (31753224).

Almost surely, 2^126959669 is an apocalyptic number.

It is an amenable number.

126959669 is a deficient number, since it is larger than the sum of its proper divisors (53227).

126959669 is an equidigital number, since it uses as much as digits as its factorization.

126959669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53226.

The product of its digits is 1574640, while the sum is 53.

The square root of 126959669 is about 11267.6381287296. The cubic root of 126959669 is about 502.5993552869.

The spelling of 126959669 in words is "one hundred twenty-six million, nine hundred fifty-nine thousand, six hundred sixty-nine".