103122661 has 2 divisors, whose sum is σ = 103122662. Its totient is φ = 103122660.

The previous prime is 103122631. The next prime is 103122689. The reversal of 103122661 is 166221301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57289761 + 45832900 = 7569^2 + 6770^2 .

It is a cyclic number.

It is not a de Polignac number, because 103122661 - 2⁷ = 103122533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103122631) 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, 51561330 + 51561331.

It is an arithmetic number, because the mean of its divisors is an integer number (51561331).

Almost surely, 2^103122661 is an apocalyptic number.

It is an amenable number.

103122661 is a deficient number, since it is larger than the sum of its proper divisors (1).

103122661 is an equidigital number, since it uses as much as digits as its factorization.

103122661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 103122661 is about 10154.9328407430. The cubic root of 103122661 is about 468.9408184061.

Adding to 103122661 its reverse (166221301), we get a palindrome (269343962).

The spelling of 103122661 in words is "one hundred three million, one hundred twenty-two thousand, six hundred sixty-one".