1022520513 has 8 divisors (see below), whose sum is σ = 1558126528. Its totient is φ = 584297424.

The previous prime is 1022520497. The next prime is 1022520517. The reversal of 1022520513 is 3150252201.

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

It is not a de Polignac number, because 1022520513 - 2⁴ = 1022520497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 48691453 = 1022520513 / (1 + 0 + 2 + 2 + 5 + 2 + 0 + 5 + 1 + 3).

It is a self number, because there is not a number n which added to its sum of digits gives 1022520513.

It is not an unprimeable number, because it can be changed into a prime (1022520517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24345706 + ... + 24345747.

It is an arithmetic number, because the mean of its divisors is an integer number (194765816).

Almost surely, 2^1022520513 is an apocalyptic number.

It is an amenable number.

1022520513 is a deficient number, since it is larger than the sum of its proper divisors (535606015).

1022520513 is an equidigital number, since it uses as much as digits as its factorization.

1022520513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48691463.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1022520513 is about 31976.8746596662. The cubic root of 1022520513 is about 1007.4511796912.

Adding to 1022520513 its reverse (3150252201), we get a palindrome (4172772714).

The spelling of 1022520513 in words is "one billion, twenty-two million, five hundred twenty thousand, five hundred thirteen".