103290409 has 2 divisors, whose sum is σ = 103290410. Its totient is φ = 103290408.

The previous prime is 103290391. The next prime is 103290427. The reversal of 103290409 is 904092301.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (103290391) and next prime (103290427).

It can be written as a sum of positive squares in only one way, i.e., 102576384 + 714025 = 10128^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 103290409 - 2¹⁵ = 103257641 is a prime.

It is not a weakly prime, because it can be changed into another prime (103290709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51645204 + 51645205.

It is an arithmetic number, because the mean of its divisors is an integer number (51645205).

Almost surely, 2^103290409 is an apocalyptic number.

It is an amenable number.

103290409 is a deficient number, since it is larger than the sum of its proper divisors (1).

103290409 is an equidigital number, since it uses as much as digits as its factorization.

103290409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 103290409 is about 10163.1889188384. The cubic root of 103290409 is about 469.1949535250.

The spelling of 103290409 in words is "one hundred three million, two hundred ninety thousand, four hundred nine".