1105745447 has 4 divisors (see below), whose sum is σ = 1153821360. Its totient is φ = 1057669536.

The previous prime is 1105745419. The next prime is 1105745513. The reversal of 1105745447 is 7445475011.

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

It is not a de Polignac number, because 1105745447 - 2¹⁴ = 1105729063 is a prime.

It is a super-2 number, since 2×1105745447² = 2445345987122459618, which contains 22 as substring.

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 1105745447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105745647) 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, 24037922 + ... + 24037967.

It is an arithmetic number, because the mean of its divisors is an integer number (288455340).

Almost surely, 2^1105745447 is an apocalyptic number.

1105745447 is a deficient number, since it is larger than the sum of its proper divisors (48075913).

1105745447 is an equidigital number, since it uses as much as digits as its factorization.

1105745447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48075912.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 1105745447 is about 33252.7509689048. The cubic root of 1105745447 is about 1034.0742410843.

The spelling of 1105745447 in words is "one billion, one hundred five million, seven hundred forty-five thousand, four hundred forty-seven".