68751233 has 2 divisors, whose sum is σ = 68751234. Its totient is φ = 68751232.

The previous prime is 68751203. The next prime is 68751259. The reversal of 68751233 is 33215786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56445169 + 12306064 = 7513^2 + 3508^2 .

It is a cyclic number.

It is not a de Polignac number, because 68751233 - 2⁶ = 68751169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68751193 and 68751202.

It is not a weakly prime, because it can be changed into another prime (68751203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34375616 + 34375617.

It is an arithmetic number, because the mean of its divisors is an integer number (34375617).

Almost surely, 2^68751233 is an apocalyptic number.

It is an amenable number.

68751233 is a deficient number, since it is larger than the sum of its proper divisors (1).

68751233 is an equidigital number, since it uses as much as digits as its factorization.

68751233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 68751233 is about 8291.6363282527. The cubic root of 68751233 is about 409.6630843114.

The spelling of 68751233 in words is "sixty-eight million, seven hundred fifty-one thousand, two hundred thirty-three".