1950565 has 4 divisors (see below), whose sum is σ = 2340684. Its totient is φ = 1560448.

The previous prime is 1950539. The next prime is 1950577. The reversal of 1950565 is 5650591.

It is a happy number.

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 1151329 + 799236 = 1073^2 + 894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1950565 - 2¹¹ = 1948517 is a prime.

It is an Ulam number.

It is a Duffinian number.

1950565 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195052 + ... + 195061.

It is an arithmetic number, because the mean of its divisors is an integer number (585171).

2^1950565 is an apocalyptic number.

It is an amenable number.

1950565 is a deficient number, since it is larger than the sum of its proper divisors (390119).

1950565 is an equidigital number, since it uses as much as digits as its factorization.

1950565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390118.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1950565 is about 1396.6262921770. The cubic root of 1950565 is about 124.9453627883.

The spelling of 1950565 in words is "one million, nine hundred fifty thousand, five hundred sixty-five".