68145501 has 8 divisors (see below), whose sum is σ = 91199520. Its totient is φ = 45260912.

The previous prime is 68145487. The next prime is 68145541. The reversal of 68145501 is 10554186.

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 68145501 - 2⁶ = 68145437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68145541) 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, 41415 + ... + 43028.

It is an arithmetic number, because the mean of its divisors is an integer number (11399940).

Almost surely, 2^68145501 is an apocalyptic number.

It is an amenable number.

68145501 is a deficient number, since it is larger than the sum of its proper divisors (23054019).

68145501 is a wasteful number, since it uses less digits than its factorization.

68145501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84715.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 68145501 is about 8255.0288309612. The cubic root of 68145501 is about 408.4564228482.

Adding to 68145501 its reverse (10554186), we get a palindrome (78699687).

The spelling of 68145501 in words is "sixty-eight million, one hundred forty-five thousand, five hundred one".