126368929 has 4 divisors (see below), whose sum is σ = 129451140. Its totient is φ = 123286720.

The previous prime is 126368909. The next prime is 126369017. The reversal of 126368929 is 929863621.

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 6969600 + 119399329 = 2640^2 + 10927^2 .

It is a cyclic number.

It is not a de Polignac number, because 126368929 - 2⁵ = 126368897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126368909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541044 + ... + 1541125.

It is an arithmetic number, because the mean of its divisors is an integer number (32362785).

Almost surely, 2^126368929 is an apocalyptic number.

It is an amenable number.

126368929 is a deficient number, since it is larger than the sum of its proper divisors (3082211).

126368929 is an equidigital number, since it uses as much as digits as its factorization.

126368929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082210.

The product of its digits is 279936, while the sum is 46.

The square root of 126368929 is about 11241.3935524027. The cubic root of 126368929 is about 501.8186159192.

The spelling of 126368929 in words is "one hundred twenty-six million, three hundred sixty-eight thousand, nine hundred twenty-nine".