126763669 has 4 divisors (see below), whose sum is σ = 131134860. Its totient is φ = 122392480.

The previous prime is 126763667. The next prime is 126763717. The reversal of 126763669 is 966367621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97278769 + 29484900 = 9863^2 + 5430^2 .

It is a cyclic number.

It is not a de Polignac number, because 126763669 - 2¹ = 126763667 is a prime.

It is a super-2 number, since 2×126763669² = 32138055556683122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126763661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185552 + ... + 2185609.

It is an arithmetic number, because the mean of its divisors is an integer number (32783715).

Almost surely, 2^126763669 is an apocalyptic number.

It is an amenable number.

126763669 is a deficient number, since it is larger than the sum of its proper divisors (4371191).

126763669 is an equidigital number, since it uses as much as digits as its factorization.

126763669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371190.

The product of its digits is 489888, while the sum is 46.

The square root of 126763669 is about 11258.9372944341. The cubic root of 126763669 is about 502.3405848947.

The spelling of 126763669 in words is "one hundred twenty-six million, seven hundred sixty-three thousand, six hundred sixty-nine".