103200661 has 2 divisors, whose sum is σ = 103200662. Its totient is φ = 103200660.

The previous prime is 103200637. The next prime is 103200667. The reversal of 103200661 is 166002301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75585636 + 27615025 = 8694^2 + 5255^2 .

It is a cyclic number.

It is not a de Polignac number, because 103200661 - 2¹⁵ = 103167893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103200667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51600330 + 51600331.

It is an arithmetic number, because the mean of its divisors is an integer number (51600331).

Almost surely, 2^103200661 is an apocalyptic number.

It is an amenable number.

103200661 is a deficient number, since it is larger than the sum of its proper divisors (1).

103200661 is an equidigital number, since it uses as much as digits as its factorization.

103200661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 103200661 is about 10158.7726128701. The cubic root of 103200661 is about 469.0590212182.

Adding to 103200661 its reverse (166002301), we get a palindrome (269202962).

The spelling of 103200661 in words is "one hundred three million, two hundred thousand, six hundred sixty-one".