1022513513 has 4 divisors (see below), whose sum is σ = 1168586880. Its totient is φ = 876440148.

The previous prime is 1022513491. The next prime is 1022513521. The reversal of 1022513513 is 3153152201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022513513 - 2¹⁶ = 1022447977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1022513533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73036673 + ... + 73036686.

It is an arithmetic number, because the mean of its divisors is an integer number (292146720).

Almost surely, 2^1022513513 is an apocalyptic number.

It is an amenable number.

1022513513 is a deficient number, since it is larger than the sum of its proper divisors (146073367).

1022513513 is an equidigital number, since it uses as much as digits as its factorization.

1022513513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146073366.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1022513513 is about 31976.7652053800. The cubic root of 1022513513 is about 1007.4488807400.

Adding to 1022513513 its reverse (3153152201), we get a palindrome (4175665714).

The spelling of 1022513513 in words is "one billion, twenty-two million, five hundred thirteen thousand, five hundred thirteen".