126640966 has 12 divisors (see below), whose sum is σ = 200486772. Its totient is φ = 59987484.

The previous prime is 126640961. The next prime is 126640979. The reversal of 126640966 is 669046621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126640961) 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 5 ways as a sum of consecutive naturals, for example, 86980 + ... + 88423.

It is an arithmetic number, because the mean of its divisors is an integer number (16707231).

Almost surely, 2^126640966 is an apocalyptic number.

126640966 is a deficient number, since it is larger than the sum of its proper divisors (73845806).

126640966 is a wasteful number, since it uses less digits than its factorization.

126640966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175443 (or 175424 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 126640966 is about 11253.4868374207. The cubic root of 126640966 is about 502.1784495972.

The spelling of 126640966 in words is "one hundred twenty-six million, six hundred forty thousand, nine hundred sixty-six".