68742125 has 8 divisors (see below), whose sum is σ = 85790328. Its totient is φ = 54993600.

The previous prime is 68742083. The next prime is 68742127. The reversal of 68742125 is 52124786.

It can be written as a sum of positive squares in 4 ways, for example, as 1444 + 68740681 = 38^2 + 8291^2 .

It is a de Polignac number, because none of the positive numbers 2^k-68742125 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68742127) 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, 274844 + ... + 275093.

It is an arithmetic number, because the mean of its divisors is an integer number (10723791).

Almost surely, 2^68742125 is an apocalyptic number.

It is an amenable number.

68742125 is a deficient number, since it is larger than the sum of its proper divisors (17048203).

68742125 is an equidigital number, since it uses as much as digits as its factorization.

68742125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549952 (or 549942 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 68742125 is about 8291.0870819212. The cubic root of 68742125 is about 409.6449931152.

The spelling of 68742125 in words is "sixty-eight million, seven hundred forty-two thousand, one hundred twenty-five".