1111541145 has 128 divisors (see below), whose sum is σ = 2194698240. Its totient is φ = 472980480.

The previous prime is 1111541129. The next prime is 1111541159. The reversal of 1111541145 is 5411451111.

It is not a de Polignac number, because 1111541145 - 2⁴ = 1111541129 is a prime.

It is a super-2 number, since 2×1111541145² = 2471047434055822050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6655852 + ... + 6656018.

It is an arithmetic number, because the mean of its divisors is an integer number (17146080).

Almost surely, 2^1111541145 is an apocalyptic number.

1111541145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111541145 is a deficient number, since it is larger than the sum of its proper divisors (1083157095).

1111541145 is a wasteful number, since it uses less digits than its factorization.

1111541145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its digits is 400, while the sum is 24.

The square root of 1111541145 is about 33339.7832176516. The cubic root of 1111541145 is about 1035.8777729443.

Adding to 1111541145 its reverse (5411451111), we get a palindrome (6522992256).

The spelling of 1111541145 in words is "one billion, one hundred eleven million, five hundred forty-one thousand, one hundred forty-five".