1002215516 has 6 divisors (see below), whose sum is σ = 1753877160. Its totient is φ = 501107756.

The previous prime is 1002215509. The next prime is 1002215519. The reversal of 1002215516 is 6155122001.

It is a happy number.

It is a super-2 number, since 2×1002215516² = 2008871881022292512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002215491 and 1002215500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002215519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125276936 + ... + 125276943.

It is an arithmetic number, because the mean of its divisors is an integer number (292312860).

Almost surely, 2^1002215516 is an apocalyptic number.

It is an amenable number.

1002215516 is a deficient number, since it is larger than the sum of its proper divisors (751661644).

1002215516 is a wasteful number, since it uses less digits than its factorization.

1002215516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250553883 (or 250553881 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1002215516 is about 31657.7876043163. The cubic root of 1002215516 is about 1000.7379606135.

Adding to 1002215516 its reverse (6155122001), we get a palindrome (7157337517).

The spelling of 1002215516 in words is "one billion, two million, two hundred fifteen thousand, five hundred sixteen".