1105785145 has 32 divisors (see below), whose sum is σ = 1505806848. Its totient is φ = 774816768.

The previous prime is 1105785143. The next prime is 1105785151. The reversal of 1105785145 is 5415875011.

It is a cyclic number.

It is not a de Polignac number, because 1105785145 - 2¹ = 1105785143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105785143) 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, 64692 + ... + 79978.

It is an arithmetic number, because the mean of its divisors is an integer number (47056464).

Almost surely, 2^1105785145 is an apocalyptic number.

It is an amenable number.

1105785145 is a deficient number, since it is larger than the sum of its proper divisors (400021703).

1105785145 is a wasteful number, since it uses less digits than its factorization.

1105785145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15369.

The product of its (nonzero) digits is 28000, while the sum is 37.

The square root of 1105785145 is about 33253.3478765673. The cubic root of 1105785145 is about 1034.0866158999.

The spelling of 1105785145 in words is "one billion, one hundred five million, seven hundred eighty-five thousand, one hundred forty-five".