1020616015 has 4 divisors (see below), whose sum is σ = 1224739224. Its totient is φ = 816492808.

The previous prime is 1020616013. The next prime is 1020616033. The reversal of 1020616015 is 5106160201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5106160201 = 50683 ⋅100747.

It is a cyclic number.

It is not a de Polignac number, because 1020616015 - 2¹ = 1020616013 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020616013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102061597 + ... + 102061606.

It is an arithmetic number, because the mean of its divisors is an integer number (306184806).

Almost surely, 2^1020616015 is an apocalyptic number.

1020616015 is a deficient number, since it is larger than the sum of its proper divisors (204123209).

1020616015 is an equidigital number, since it uses as much as digits as its factorization.

1020616015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204123208.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1020616015 is about 31947.0814785952. The cubic root of 1020616015 is about 1006.8253141019.

Adding to 1020616015 its reverse (5106160201), we get a palindrome (6126776216).

The spelling of 1020616015 in words is "one billion, twenty million, six hundred sixteen thousand, fifteen".