1020206015 has 8 divisors (see below), whose sum is σ = 1224711888. Its totient is φ = 815855040.

The previous prime is 1020205997. The next prime is 1020206027. The reversal of 1020206015 is 5106020201.

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

It is not a de Polignac number, because 1020206015 - 2¹⁴ = 1020189631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020205984 and 1020206002.

It is a congruent number.

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, 23702 + ... + 51011.

It is an arithmetic number, because the mean of its divisors is an integer number (153088986).

Almost surely, 2^1020206015 is an apocalyptic number.

1020206015 is a deficient number, since it is larger than the sum of its proper divisors (204505873).

1020206015 is an equidigital number, since it uses as much as digits as its factorization.

1020206015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77449.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1020206015 is about 31940.6639724349. The cubic root of 1020206015 is about 1006.6904760363.

Adding to 1020206015 its reverse (5106020201), we get a palindrome (6126226216).

The spelling of 1020206015 in words is "one billion, twenty million, two hundred six thousand, fifteen".