103210409 has 2 divisors, whose sum is σ = 103210410. Its totient is φ = 103210408.

The previous prime is 103210403. The next prime is 103210483. The reversal of 103210409 is 904012301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70090384 + 33120025 = 8372^2 + 5755^2 .

It is a cyclic number.

It is not a de Polignac number, because 103210409 - 2⁸ = 103210153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103210403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51605204 + 51605205.

It is an arithmetic number, because the mean of its divisors is an integer number (51605205).

Almost surely, 2^103210409 is an apocalyptic number.

It is an amenable number.

103210409 is a deficient number, since it is larger than the sum of its proper divisors (1).

103210409 is an equidigital number, since it uses as much as digits as its factorization.

103210409 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 20.

The square root of 103210409 is about 10159.2523839109. The cubic root of 103210409 is about 469.0737893515.

The spelling of 103210409 in words is "one hundred three million, two hundred ten thousand, four hundred nine".