126689968 has 10 divisors (see below), whose sum is σ = 245461844. Its totient is φ = 63344976.

The previous prime is 126689947. The next prime is 126689971. The reversal of 126689968 is 869986621.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3959046 + ... + 3959077.

Almost surely, 2^126689968 is an apocalyptic number.

It is an amenable number.

126689968 is a deficient number, since it is larger than the sum of its proper divisors (118771876).

126689968 is an equidigital number, since it uses as much as digits as its factorization.

126689968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7918131 (or 7918125 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 55.

The square root of 126689968 is about 11255.6638187181. The cubic root of 126689968 is about 502.2432116195.

The spelling of 126689968 in words is "one hundred twenty-six million, six hundred eighty-nine thousand, nine hundred sixty-eight".