103224521 has 2 divisors, whose sum is σ = 103224522. Its totient is φ = 103224520.

The previous prime is 103224497. The next prime is 103224547. The reversal of 103224521 is 125422301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83466496 + 19758025 = 9136^2 + 4445^2 .

It is a cyclic number.

It is not a de Polignac number, because 103224521 - 2¹⁴ = 103208137 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103224493 and 103224502.

It is not a weakly prime, because it can be changed into another prime (103224551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51612260 + 51612261.

It is an arithmetic number, because the mean of its divisors is an integer number (51612261).

Almost surely, 2^103224521 is an apocalyptic number.

It is an amenable number.

103224521 is a deficient number, since it is larger than the sum of its proper divisors (1).

103224521 is an equidigital number, since it uses as much as digits as its factorization.

103224521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 103224521 is about 10159.9468994675. The cubic root of 103224521 is about 469.0951672588.

Adding to 103224521 its reverse (125422301), we get a palindrome (228646822).

The spelling of 103224521 in words is "one hundred three million, two hundred twenty-four thousand, five hundred twenty-one".