68153459 has 16 divisors (see below), whose sum is σ = 79063776. Its totient is φ = 58060800.

The previous prime is 68153443. The next prime is 68153471. The reversal of 68153459 is 95435186.

It is a cyclic number.

It is not a de Polignac number, because 68153459 - 2⁴ = 68153443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68153419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51899 + ... + 53195.

It is an arithmetic number, because the mean of its divisors is an integer number (4941486).

Almost surely, 2^68153459 is an apocalyptic number.

68153459 is a deficient number, since it is larger than the sum of its proper divisors (10910317).

68153459 is a wasteful number, since it uses less digits than its factorization.

68153459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606.

The product of its digits is 129600, while the sum is 41.

The square root of 68153459 is about 8255.5108261088. The cubic root of 68153459 is about 408.4723220132.

The spelling of 68153459 in words is "sixty-eight million, one hundred fifty-three thousand, four hundred fifty-nine".