1105142165 has 8 divisors (see below), whose sum is σ = 1333837368. Its totient is φ = 879002560.

The previous prime is 1105142149. The next prime is 1105142197. The reversal of 1105142165 is 5612415011.

It can be written as a sum of positive squares in 4 ways, for example, as 113018161 + 992124004 = 10631^2 + 31498^2 .

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

It is not a de Polignac number, because 1105142165 - 2⁴ = 1105142149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637946 + ... + 639675.

It is an arithmetic number, because the mean of its divisors is an integer number (166729671).

Almost surely, 2^1105142165 is an apocalyptic number.

It is an amenable number.

1105142165 is a deficient number, since it is larger than the sum of its proper divisors (228695203).

1105142165 is a wasteful number, since it uses less digits than its factorization.

1105142165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277799.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1105142165 is about 33243.6785720233. The cubic root of 1105142165 is about 1033.8861472014.

Adding to 1105142165 its reverse (5612415011), we get a palindrome (6717557176).

The spelling of 1105142165 in words is "one billion, one hundred five million, one hundred forty-two thousand, one hundred sixty-five".