126620329 has 6 divisors (see below), whose sum is σ = 139177850. Its totient is φ = 115109280.

The previous prime is 126620321. The next prime is 126620353. The reversal of 126620329 is 923026621.

It can be written as a sum of positive squares in only one way, i.e., 122699929 + 3920400 = 11077^2 + 1980^2 .

It is not a de Polignac number, because 126620329 - 2³ = 126620321 is a prime.

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 126620329.

It is not an unprimeable number, because it can be changed into a prime (126620321) 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, 523104 + ... + 523345.

Almost surely, 2^126620329 is an apocalyptic number.

It is an amenable number.

126620329 is a deficient number, since it is larger than the sum of its proper divisors (12557521).

126620329 is a wasteful number, since it uses less digits than its factorization.

126620329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046471 (or 1046460 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 126620329 is about 11252.5698842531. The cubic root of 126620329 is about 502.1511703263.

The spelling of 126620329 in words is "one hundred twenty-six million, six hundred twenty thousand, three hundred twenty-nine".