1105042513 has 4 divisors (see below), whose sum is σ = 1105225380. Its totient is φ = 1104859648.

The previous prime is 1105042501. The next prime is 1105042529. The reversal of 1105042513 is 3152405011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3152405011 = 7 ⋅450343573.

It can be written as a sum of positive squares in 2 ways, for example, as 669360384 + 435682129 = 25872^2 + 20873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105042513 - 2¹³ = 1105034321 is a prime.

It is a super-2 number, since 2×1105042513² = 2442237911074710338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105046513) 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, 82048 + ... + 94561.

It is an arithmetic number, because the mean of its divisors is an integer number (276306345).

Almost surely, 2^1105042513 is an apocalyptic number.

It is an amenable number.

1105042513 is a deficient number, since it is larger than the sum of its proper divisors (182867).

1105042513 is an equidigital number, since it uses as much as digits as its factorization.

1105042513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182866.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1105042513 is about 33242.1797269674. The cubic root of 1105042513 is about 1033.8550706810.

Adding to 1105042513 its reverse (3152405011), we get a palindrome (4257447524).

The spelling of 1105042513 in words is "one billion, one hundred five million, forty-two thousand, five hundred thirteen".