126304165 has 8 divisors (see below), whose sum is σ = 163223928. Its totient is φ = 93270720.

The previous prime is 126304163. The next prime is 126304177. The reversal of 126304165 is 561403621.

It can be written as a sum of positive squares in 4 ways, for example, as 370881 + 125933284 = 609^2 + 11222^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126304165 - 2¹ = 126304163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126304163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971506 + ... + 971635.

It is an arithmetic number, because the mean of its divisors is an integer number (20402991).

Almost surely, 2^126304165 is an apocalyptic number.

It is an amenable number.

126304165 is a deficient number, since it is larger than the sum of its proper divisors (36919763).

126304165 is a wasteful number, since it uses less digits than its factorization.

126304165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943159.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 126304165 is about 11238.5125795187. The cubic root of 126304165 is about 501.7328740238.

Adding to 126304165 its reverse (561403621), we get a palindrome (687707786).

The spelling of 126304165 in words is "one hundred twenty-six million, three hundred four thousand, one hundred sixty-five".