68250961 has 2 divisors, whose sum is σ = 68250962. Its totient is φ = 68250960.

The previous prime is 68250929. The next prime is 68250967. The reversal of 68250961 is 16905286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43560000 + 24690961 = 6600^2 + 4969^2 .

It is a cyclic number.

It is not a de Polignac number, because 68250961 - 2⁵ = 68250929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68250961.

It is not a weakly prime, because it can be changed into another prime (68250967) 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 as a sum of consecutive naturals, namely, 34125480 + 34125481.

It is an arithmetic number, because the mean of its divisors is an integer number (34125481).

Almost surely, 2^68250961 is an apocalyptic number.

It is an amenable number.

68250961 is a deficient number, since it is larger than the sum of its proper divisors (1).

68250961 is an equidigital number, since it uses as much as digits as its factorization.

68250961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 68250961 is about 8261.4139830903. The cubic root of 68250961 is about 408.6670193505.

The spelling of 68250961 in words is "sixty-eight million, two hundred fifty thousand, nine hundred sixty-one".