68751401 has 2 divisors, whose sum is σ = 68751402. Its totient is φ = 68751400.

The previous prime is 68751391. The next prime is 68751413. The reversal of 68751401 is 10415786.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68079001 + 672400 = 8251^2 + 820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68751401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68751421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34375700 + 34375701.

It is an arithmetic number, because the mean of its divisors is an integer number (34375701).

Almost surely, 2^68751401 is an apocalyptic number.

It is an amenable number.

68751401 is a deficient number, since it is larger than the sum of its proper divisors (1).

68751401 is an equidigital number, since it uses as much as digits as its factorization.

68751401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 68751401 is about 8291.6464589368. The cubic root of 68751401 is about 409.6634179944.

The spelling of 68751401 in words is "sixty-eight million, seven hundred fifty-one thousand, four hundred one".