1000422505 has 8 divisors (see below), whose sum is σ = 1208565000. Its totient is φ = 794966016.

The previous prime is 1000422499. The next prime is 1000422517. The reversal of 1000422505 is 5052240001.

It can be written as a sum of positive squares in 4 ways, for example, as 57441241 + 942981264 = 7579^2 + 30708^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000422505 - 2⁹ = 1000421993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670680 + ... + 672169.

It is an arithmetic number, because the mean of its divisors is an integer number (151070625).

Almost surely, 2^1000422505 is an apocalyptic number.

It is an amenable number.

1000422505 is a deficient number, since it is larger than the sum of its proper divisors (208142495).

1000422505 is a wasteful number, since it uses less digits than its factorization.

1000422505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343003.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1000422505 is about 31629.4562868223. The cubic root of 1000422505 is about 1000.1408151702.

Adding to 1000422505 its reverse (5052240001), we get a palindrome (6052662506).

The spelling of 1000422505 in words is "one billion, four hundred twenty-two thousand, five hundred five".