1020245215 has 32 divisors (see below), whose sum is σ = 1401007104. Its totient is φ = 706515840.

The previous prime is 1020245209. The next prime is 1020245243. The reversal of 1020245215 is 5125420201.

It is not a de Polignac number, because 1020245215 - 2⁷ = 1020245087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90312 + ... + 100978.

It is an arithmetic number, because the mean of its divisors is an integer number (43781472).

Almost surely, 2^1020245215 is an apocalyptic number.

1020245215 is a deficient number, since it is larger than the sum of its proper divisors (380761889).

1020245215 is a wasteful number, since it uses less digits than its factorization.

1020245215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10767.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1020245215 is about 31941.2776043789. The cubic root of 1020245215 is about 1006.7033694326.

Adding to 1020245215 its reverse (5125420201), we get a palindrome (6145665416).

The spelling of 1020245215 in words is "one billion, twenty million, two hundred forty-five thousand, two hundred fifteen".