68151049 has 2 divisors, whose sum is σ = 68151050. Its totient is φ = 68151048.

The previous prime is 68151037. The next prime is 68151053. The reversal of 68151049 is 94015186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52823824 + 15327225 = 7268^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 68151049 - 2¹¹ = 68149001 is a prime.

It is not a weakly prime, because it can be changed into another prime (68151019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075524 + 34075525.

It is an arithmetic number, because the mean of its divisors is an integer number (34075525).

Almost surely, 2^68151049 is an apocalyptic number.

It is an amenable number.

68151049 is a deficient number, since it is larger than the sum of its proper divisors (1).

68151049 is an equidigital number, since it uses as much as digits as its factorization.

68151049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 68151049 is about 8255.3648617127. The cubic root of 68151049 is about 408.4675072422.

The spelling of 68151049 in words is "sixty-eight million, one hundred fifty-one thousand, forty-nine".