68140875 has 32 divisors (see below), whose sum is σ = 123701760. Its totient is φ = 33036000.

The previous prime is 68140847. The next prime is 68140903. The reversal of 68140875 is 57804186.

It is an interprime number because it is at equal distance from previous prime (68140847) and next prime (68140903).

It is not a de Polignac number, because 68140875 - 2⁷ = 68140747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4135 + ... + 12384.

It is an arithmetic number, because the mean of its divisors is an integer number (3865680).

Almost surely, 2^68140875 is an apocalyptic number.

68140875 is a deficient number, since it is larger than the sum of its proper divisors (55560885).

68140875 is a wasteful number, since it uses less digits than its factorization.

68140875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16548 (or 16538 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 68140875 is about 8254.7486333625. The cubic root of 68140875 is about 408.4471800655.

The spelling of 68140875 in words is "sixty-eight million, one hundred forty thousand, eight hundred seventy-five".