701226161 has 2 divisors, whose sum is σ = 701226162. Its totient is φ = 701226160.

The previous prime is 701226121. The next prime is 701226187. The reversal of 701226161 is 161622107.

It is an a-pointer prime, because the next prime (701226187) can be obtained adding 701226161 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463110400 + 238115761 = 21520^2 + 15431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-701226161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 701226161.

It is not a weakly prime, because it can be changed into another prime (701226121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350613080 + 350613081.

It is an arithmetic number, because the mean of its divisors is an integer number (350613081).

Almost surely, 2^701226161 is an apocalyptic number.

It is an amenable number.

701226161 is a deficient number, since it is larger than the sum of its proper divisors (1).

701226161 is an equidigital number, since it uses as much as digits as its factorization.

701226161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 701226161 is about 26480.6752368590. The cubic root of 701226161 is about 888.4221342150.

Adding to 701226161 its reverse (161622107), we get a palindrome (862848268).

The spelling of 701226161 in words is "seven hundred one million, two hundred twenty-six thousand, one hundred sixty-one".