1950505 has 4 divisors (see below), whose sum is σ = 2340612. Its totient is φ = 1560400.

The previous prime is 1950463. The next prime is 1950517. The reversal of 1950505 is 5050591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1065024 + 885481 = 1032^2 + 941^2 .

It is not a de Polignac number, because 1950505 - 2¹⁵ = 1917737 is a prime.

It is a Duffinian number.

1950505 is a modest number, since divided by 505 gives 195 as remainder.

1950505 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1950505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195046 + ... + 195055.

It is an arithmetic number, because the mean of its divisors is an integer number (585153).

2^1950505 is an apocalyptic number.

It is an amenable number.

1950505 is a deficient number, since it is larger than the sum of its proper divisors (390107).

1950505 is an equidigital number, since it uses as much as digits as its factorization.

1950505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390106.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1950505 is about 1396.6048116772. The cubic root of 1950505 is about 124.9440816555.

The spelling of 1950505 in words is "one million, nine hundred fifty thousand, five hundred five".