68510145 has 16 divisors (see below), whose sum is σ = 119581632. Its totient is φ = 33216960.

The previous prime is 68510131. The next prime is 68510147. The reversal of 68510145 is 54101586.

It is not a de Polignac number, because 68510145 - 2⁶ = 68510081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68510147) 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, 207442 + ... + 207771.

It is an arithmetic number, because the mean of its divisors is an integer number (7473852).

Almost surely, 2^68510145 is an apocalyptic number.

It is an amenable number.

68510145 is a deficient number, since it is larger than the sum of its proper divisors (51071487).

68510145 is a wasteful number, since it uses less digits than its factorization.

68510145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415232.

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

The square root of 68510145 is about 8277.0855377965. The cubic root of 68510145 is about 409.1836721851.

The spelling of 68510145 in words is "sixty-eight million, five hundred ten thousand, one hundred forty-five".