1026275513 has 4 divisors (see below), whose sum is σ = 1027254900. Its totient is φ = 1025296128.

The previous prime is 1026275483. The next prime is 1026275521. The reversal of 1026275513 is 3155726201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 543682489 + 482593024 = 23317^2 + 21968^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026275513 - 2¹⁰ = 1026274489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1026275513.

It is not an unprimeable number, because it can be changed into a prime (1026275543) 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, 488120 + ... + 490217.

It is an arithmetic number, because the mean of its divisors is an integer number (256813725).

Almost surely, 2^1026275513 is an apocalyptic number.

It is an amenable number.

1026275513 is a deficient number, since it is larger than the sum of its proper divisors (979387).

1026275513 is an equidigital number, since it uses as much as digits as its factorization.

1026275513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979386.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1026275513 is about 32035.5351601936. The cubic root of 1026275513 is about 1008.6828934853.

The spelling of 1026275513 in words is "one billion, twenty-six million, two hundred seventy-five thousand, five hundred thirteen".