126443764 has 12 divisors (see below), whose sum is σ = 221462500. Its totient is φ = 63168768.

The previous prime is 126443731. The next prime is 126443791. The reversal of 126443764 is 467344621.

It can be written as a sum of positive squares in 2 ways, for example, as 64160100 + 62283664 = 8010^2 + 7892^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 7659 + ... + 17650.

Almost surely, 2^126443764 is an apocalyptic number.

It is an amenable number.

126443764 is a deficient number, since it is larger than the sum of its proper divisors (95018736).

126443764 is a wasteful number, since it uses less digits than its factorization.

126443764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26562 (or 26560 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 126443764 is about 11244.7216061582. The cubic root of 126443764 is about 501.9176544667.

The spelling of 126443764 in words is "one hundred twenty-six million, four hundred forty-three thousand, seven hundred sixty-four".