126165266 has 4 divisors (see below), whose sum is σ = 189247902. Its totient is φ = 63082632.

The previous prime is 126165251. The next prime is 126165269. The reversal of 126165266 is 662561621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 91107025 + 35058241 = 9545^2 + 5921^2 .

It is not an unprimeable number, because it can be changed into a prime (126165269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31541315 + ... + 31541318.

Almost surely, 2^126165266 is an apocalyptic number.

126165266 is a deficient number, since it is larger than the sum of its proper divisors (63082636).

126165266 is an equidigital number, since it uses as much as digits as its factorization.

126165266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63082635.

The product of its digits is 25920, while the sum is 35.

The square root of 126165266 is about 11232.3312807271. The cubic root of 126165266 is about 501.5488849563.

The spelling of 126165266 in words is "one hundred twenty-six million, one hundred sixty-five thousand, two hundred sixty-six".