68125837 has 8 divisors (see below), whose sum is σ = 74569880. Its totient is φ = 61853760.

The previous prime is 68125807. The next prime is 68125861. The reversal of 68125837 is 73852186.

It can be written as a sum of positive squares in 4 ways, for example, as 4541161 + 63584676 = 2131^2 + 7974^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68125837 is a prime.

It is a super-2 number, since 2×68125837² = 9282259333901138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68125837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68125807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42162 + ... + 43747.

It is an arithmetic number, because the mean of its divisors is an integer number (9321235).

Almost surely, 2^68125837 is an apocalyptic number.

It is an amenable number.

68125837 is a deficient number, since it is larger than the sum of its proper divisors (6444043).

68125837 is a wasteful number, since it uses less digits than its factorization.

68125837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85983.

The product of its digits is 80640, while the sum is 40.

The square root of 68125837 is about 8253.8377134518. The cubic root of 68125837 is about 408.4171311383.

The spelling of 68125837 in words is "sixty-eight million, one hundred twenty-five thousand, eight hundred thirty-seven".