68148065 has 8 divisors (see below), whose sum is σ = 81855528. Its totient is φ = 54466560.

The previous prime is 68147977. The next prime is 68148071. The reversal of 68148065 is 56084186.

It can be written as a sum of positive squares in 4 ways, for example, as 4977361 + 63170704 = 2231^2 + 7948^2 .

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

It is not a de Polignac number, because 68148065 - 2²⁴ = 51370849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (10231941).

Almost surely, 2^68148065 is an apocalyptic number.

It is an amenable number.

68148065 is a deficient number, since it is larger than the sum of its proper divisors (13707463).

68148065 is a wasteful number, since it uses less digits than its factorization.

68148065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12979.

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

The square root of 68148065 is about 8255.1841287763. The cubic root of 68148065 is about 408.4615455593.

The spelling of 68148065 in words is "sixty-eight million, one hundred forty-eight thousand, sixty-five".