68805146 has 4 divisors (see below), whose sum is σ = 103207722. Its totient is φ = 34402572.

The previous prime is 68805127. The next prime is 68805161. The reversal of 68805146 is 64150886.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64150886 = 2 ⋅32075443.

It can be written as a sum of positive squares in only one way, i.e., 53509225 + 15295921 = 7315^2 + 3911^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17201285 + ... + 17201288.

Almost surely, 2^68805146 is an apocalyptic number.

68805146 is a deficient number, since it is larger than the sum of its proper divisors (34402576).

68805146 is a wasteful number, since it uses less digits than its factorization.

68805146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34402575.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 68805146 is about 8294.8867382261. The cubic root of 68805146 is about 409.7701388532.

The spelling of 68805146 in words is "sixty-eight million, eight hundred five thousand, one hundred forty-six".