1111455155 has 16 divisors (see below), whose sum is σ = 1419539904. Its totient is φ = 832512000.

The previous prime is 1111455139. The next prime is 1111455199. The reversal of 1111455155 is 5515541111.

It is not a de Polignac number, because 1111455155 - 2⁴ = 1111455139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17471 + ... + 50280.

It is an arithmetic number, because the mean of its divisors is an integer number (88721244).

Almost surely, 2^1111455155 is an apocalyptic number.

1111455155 is a deficient number, since it is larger than the sum of its proper divisors (308084749).

1111455155 is a wasteful number, since it uses less digits than its factorization.

1111455155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67966.

The product of its digits is 2500, while the sum is 29.

The square root of 1111455155 is about 33338.4935922426. The cubic root of 1111455155 is about 1035.8510600549.

Adding to 1111455155 its reverse (5515541111), we get a palindrome (6626996266).

The spelling of 1111455155 in words is "one billion, one hundred eleven million, four hundred fifty-five thousand, one hundred fifty-five".