68310045 has 12 divisors (see below), whose sum is σ = 118404156. Its totient is φ = 36432000.

The previous prime is 68310041. The next prime is 68310049. The reversal of 68310045 is 54001386.

It is an interprime number because it is at equal distance from previous prime (68310041) and next prime (68310049).

It can be written as a sum of positive squares in 2 ways, for example, as 9603801 + 58706244 = 3099^2 + 7662^2 .

It is not a de Polignac number, because 68310045 - 2² = 68310041 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68310041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758956 + ... + 759045.

It is an arithmetic number, because the mean of its divisors is an integer number (9867013).

Almost surely, 2^68310045 is an apocalyptic number.

It is an amenable number.

68310045 is a deficient number, since it is larger than the sum of its proper divisors (50094111).

68310045 is a wasteful number, since it uses less digits than its factorization.

68310045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518012 (or 1518009 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 68310045 is about 8264.9891107006. The cubic root of 68310045 is about 408.7849113071.

The spelling of 68310045 in words is "sixty-eight million, three hundred ten thousand, forty-five".