126165207 has 8 divisors (see below), whose sum is σ = 192251776. Its totient is φ = 72094392.

The previous prime is 126165203. The next prime is 126165209. The reversal of 126165207 is 702561621.

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

It is not a de Polignac number, because 126165207 - 2² = 126165203 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 (126165203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3003913 + ... + 3003954.

It is an arithmetic number, because the mean of its divisors is an integer number (24031472).

Almost surely, 2^126165207 is an apocalyptic number.

126165207 is a deficient number, since it is larger than the sum of its proper divisors (66086569).

126165207 is an equidigital number, since it uses as much as digits as its factorization.

126165207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007877.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 126165207 is about 11232.3286543797. The cubic root of 126165207 is about 501.5488067748.

The spelling of 126165207 in words is "one hundred twenty-six million, one hundred sixty-five thousand, two hundred seven".