126216266 has 32 divisors (see below), whose sum is σ = 213592896. Its totient is φ = 55440000.

The previous prime is 126216263. The next prime is 126216269. The reversal of 126216266 is 662612621.

It is an interprime number because it is at equal distance from previous prime (126216263) and next prime (126216269).

It is not an unprimeable number, because it can be changed into a prime (126216263) 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 15 ways as a sum of consecutive naturals, for example, 94886 + ... + 96206.

It is an arithmetic number, because the mean of its divisors is an integer number (6674778).

Almost surely, 2^126216266 is an apocalyptic number.

126216266 is a deficient number, since it is larger than the sum of its proper divisors (87376630).

126216266 is a wasteful number, since it uses less digits than its factorization.

126216266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478.

The product of its digits is 10368, while the sum is 32.

The square root of 126216266 is about 11234.6012835347. The cubic root of 126216266 is about 501.6164565051.

Adding to 126216266 its reverse (662612621), we get a palindrome (788828887).

The spelling of 126216266 in words is "one hundred twenty-six million, two hundred sixteen thousand, two hundred sixty-six".