68012189 has 8 divisors (see below), whose sum is σ = 82300608. Its totient is φ = 54866880.

The previous prime is 68012177. The next prime is 68012207. The reversal of 68012189 is 98121086.

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

It is a cyclic number.

It is not a de Polignac number, because 68012189 - 2¹² = 68008093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285647 + ... + 285884.

It is an arithmetic number, because the mean of its divisors is an integer number (10287576).

Almost surely, 2^68012189 is an apocalyptic number.

It is an amenable number.

68012189 is a deficient number, since it is larger than the sum of its proper divisors (14288419).

68012189 is a wasteful number, since it uses less digits than its factorization.

68012189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571555.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 68012189 is about 8246.9502848023. The cubic root of 68012189 is about 408.1898966239.

The spelling of 68012189 in words is "sixty-eight million, twelve thousand, one hundred eighty-nine".