1111354145 has 12 divisors (see below), whose sum is σ = 1465886100. Its totient is φ = 808257120.

The previous prime is 1111354129. The next prime is 1111354169. The reversal of 1111354145 is 5414531111.

It can be written as a sum of positive squares in 2 ways, for example, as 186950929 + 924403216 = 13673^2 + 30404^2 .

It is not a de Polignac number, because 1111354145 - 2⁴ = 1111354129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 917870 + ... + 919079.

It is an arithmetic number, because the mean of its divisors is an integer number (122157175).

Almost surely, 2^1111354145 is an apocalyptic number.

It is an amenable number.

1111354145 is a deficient number, since it is larger than the sum of its proper divisors (354531955).

1111354145 is a wasteful number, since it uses less digits than its factorization.

1111354145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836976 (or 1836965 counting only the distinct ones).

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

The square root of 1111354145 is about 33336.9786423425. The cubic root of 1111354145 is about 1035.8196794260.

Adding to 1111354145 its reverse (5414531111), we get a palindrome (6525885256).

The spelling of 1111354145 in words is "one billion, one hundred eleven million, three hundred fifty-four thousand, one hundred forty-five".