1020130245 has 48 divisors (see below), whose sum is σ = 1834326000. Its totient is φ = 523837440.

The previous prime is 1020130217. The next prime is 1020130261. The reversal of 1020130245 is 5420310201.

It can be written as a sum of positive squares in 8 ways, for example, as 139287204 + 880843041 = 11802^2 + 29679^2 .

It is not a de Polignac number, because 1020130245 - 2⁷ = 1020130117 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 585075 + ... + 586815.

It is an arithmetic number, because the mean of its divisors is an integer number (38215125).

Almost surely, 2^1020130245 is an apocalyptic number.

1020130245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020130245 is a deficient number, since it is larger than the sum of its proper divisors (814195755).

1020130245 is a wasteful number, since it uses less digits than its factorization.

1020130245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020130245 is about 31939.4778448240. The cubic root of 1020130245 is about 1006.6655533493.

Adding to 1020130245 its reverse (5420310201), we get a palindrome (6440440446).

The spelling of 1020130245 in words is "one billion, twenty million, one hundred thirty thousand, two hundred forty-five".