1105143819 has 32 divisors (see below), whose sum is σ = 1602822144. Its totient is φ = 673297920.

The previous prime is 1105143811. The next prime is 1105143821. The reversal of 1105143819 is 9183415011.

It is not a de Polignac number, because 1105143819 - 2³ = 1105143811 is a prime.

It is a super-2 number, since 2×1105143819² = 2442685721347809522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1105143819.

It is not an unprimeable number, because it can be changed into a prime (1105143811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2885302 + ... + 2885684.

It is an arithmetic number, because the mean of its divisors is an integer number (50088192).

Almost surely, 2^1105143819 is an apocalyptic number.

1105143819 is a deficient number, since it is larger than the sum of its proper divisors (497678325).

1105143819 is a wasteful number, since it uses less digits than its factorization.

1105143819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 1105143819 is about 33243.7034489240. The cubic root of 1105143819 is about 1033.8866629863.

The spelling of 1105143819 in words is "one billion, one hundred five million, one hundred forty-three thousand, eight hundred nineteen".