103325561 has 2 divisors, whose sum is σ = 103325562. Its totient is φ = 103325560.

The previous prime is 103325557. The next prime is 103325597. The reversal of 103325561 is 165523301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 29365561 = 8600^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 103325561 - 2² = 103325557 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103325561.

It is not a weakly prime, because it can be changed into another prime (103025561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51662780 + 51662781.

It is an arithmetic number, because the mean of its divisors is an integer number (51662781).

Almost surely, 2^103325561 is an apocalyptic number.

It is an amenable number.

103325561 is a deficient number, since it is larger than the sum of its proper divisors (1).

103325561 is an equidigital number, since it uses as much as digits as its factorization.

103325561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 103325561 is about 10164.9181501869. The cubic root of 103325561 is about 469.2481732786.

Adding to 103325561 its reverse (165523301), we get a palindrome (268848862).

The spelling of 103325561 in words is "one hundred three million, three hundred twenty-five thousand, five hundred sixty-one".