1650413 has 2 divisors, whose sum is σ = 1650414. Its totient is φ = 1650412.

The previous prime is 1650401. The next prime is 1650427. The reversal of 1650413 is 3140561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1643524 + 6889 = 1282^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650413 - 2⁶ = 1650349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1650463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825206 + 825207.

It is an arithmetic number, because the mean of its divisors is an integer number (825207).

2^1650413 is an apocalyptic number.

It is an amenable number.

1650413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650413 is an equidigital number, since it uses as much as digits as its factorization.

1650413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1650413 is about 1284.6840078401. The cubic root of 1650413 is about 118.1764333749.

Adding to 1650413 its reverse (3140561), we get a palindrome (4790974).

It can be divided in two parts, 16 and 50413, that multiplied together give a palindrome (806608).

The spelling of 1650413 in words is "one million, six hundred fifty thousand, four hundred thirteen".