668012134 has 8 divisors (see below), whose sum is σ = 1029099888. Its totient is φ = 324978840.

The previous prime is 668012113. The next prime is 668012141. The reversal of 668012134 is 431210866.

It is a happy number.

668012134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×668012134² = 892480422342467912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 668012096 and 668012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4513522 + ... + 4513669.

It is an arithmetic number, because the mean of its divisors is an integer number (128637486).

Almost surely, 2^668012134 is an apocalyptic number.

668012134 is a deficient number, since it is larger than the sum of its proper divisors (361087754).

668012134 is a wasteful number, since it uses less digits than its factorization.

668012134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9027230.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 668012134 is about 25845.9307048518. The cubic root of 668012134 is about 874.1677568113.

The spelling of 668012134 in words is "six hundred sixty-eight million, twelve thousand, one hundred thirty-four".