126765529 has 6 divisors (see below), whose sum is σ = 139337450. Its totient is φ = 115241280.

The previous prime is 126765523. The next prime is 126765539. The reversal of 126765529 is 925567621.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 2108304 = 11165^2 + 1452^2 .

It is not a de Polignac number, because 126765529 - 2¹⁷ = 126634457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126765523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 523704 + ... + 523945.

Almost surely, 2^126765529 is an apocalyptic number.

It is an amenable number.

126765529 is a deficient number, since it is larger than the sum of its proper divisors (12571921).

126765529 is a wasteful number, since it uses less digits than its factorization.

126765529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047671 (or 1047660 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 126765529 is about 11259.0198951774. The cubic root of 126765529 is about 502.3430418261.

The spelling of 126765529 in words is "one hundred twenty-six million, seven hundred sixty-five thousand, five hundred twenty-nine".