1105142513 has 4 divisors (see below), whose sum is σ = 1105371300. Its totient is φ = 1104913728.

The previous prime is 1105142503. The next prime is 1105142557. The reversal of 1105142513 is 3152415011.

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 199854769 + 905287744 = 14137^2 + 30088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105142513 - 2⁸ = 1105142257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105142503) 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, 106988 + ... + 116861.

It is an arithmetic number, because the mean of its divisors is an integer number (276342825).

Almost surely, 2^1105142513 is an apocalyptic number.

It is an amenable number.

1105142513 is a deficient number, since it is larger than the sum of its proper divisors (228787).

1105142513 is an equidigital number, since it uses as much as digits as its factorization.

1105142513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228786.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1105142513 is about 33243.6838061007. The cubic root of 1105142513 is about 1033.8862557221.

Adding to 1105142513 its reverse (3152415011), we get a palindrome (4257557524).

The spelling of 1105142513 in words is "one billion, one hundred five million, one hundred forty-two thousand, five hundred thirteen".