126032729 has 16 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 120157440.

The previous prime is 126032723. The next prime is 126032743. The reversal of 126032729 is 927230621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 126032729 - 2²⁴ = 109255513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126032695 and 126032704.

It is not an unprimeable number, because it can be changed into a prime (126032723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540797 + ... + 541029.

It is an arithmetic number, because the mean of its divisors is an integer number (8255520).

Almost surely, 2^126032729 is an apocalyptic number.

It is an amenable number.

126032729 is a deficient number, since it is larger than the sum of its proper divisors (6055591).

126032729 is a wasteful number, since it uses less digits than its factorization.

126032729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 126032729 is about 11226.4299311936. The cubic root of 126032729 is about 501.3731972063.

The spelling of 126032729 in words is "one hundred twenty-six million, thirty-two thousand, seven hundred twenty-nine".