1020520246 has 4 divisors (see below), whose sum is σ = 1530780372. Its totient is φ = 510260122.

The previous prime is 1020520243. The next prime is 1020520271. The reversal of 1020520246 is 6420250201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6420250201 = 15559 ⋅412639.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020520243) 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 as a sum of consecutive naturals, namely, 255130060 + ... + 255130063.

It is an arithmetic number, because the mean of its divisors is an integer number (382695093).

Almost surely, 2^1020520246 is an apocalyptic number.

1020520246 is a deficient number, since it is larger than the sum of its proper divisors (510260126).

1020520246 is an equidigital number, since it uses as much as digits as its factorization.

1020520246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510260125.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1020520246 is about 31945.5825741213. The cubic root of 1020520246 is about 1006.7938214647.

Adding to 1020520246 its reverse (6420250201), we get a palindrome (7440770447).

The spelling of 1020520246 in words is "one billion, twenty million, five hundred twenty thousand, two hundred forty-six".