1111255145 has 32 divisors (see below), whose sum is σ = 1790449920. Its totient is φ = 639440640.

The previous prime is 1111255127. The next prime is 1111255163. The reversal of 1111255145 is 5415521111.

It is a happy number.

1111255145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1111255127) and next prime (1111255163).

It is not a de Polignac number, because 1111255145 - 2⁸ = 1111254889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106010 + ... + 116019.

It is an arithmetic number, because the mean of its divisors is an integer number (55951560).

Almost surely, 2^1111255145 is an apocalyptic number.

It is an amenable number.

1111255145 is a deficient number, since it is larger than the sum of its proper divisors (679194775).

1111255145 is a wasteful number, since it uses less digits than its factorization.

1111255145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222065.

The product of its digits is 1000, while the sum is 26.

The square root of 1111255145 is about 33335.4937716543. The cubic root of 1111255145 is about 1035.7889213957.

Adding to 1111255145 its reverse (5415521111), we get a palindrome (6526776256).

The spelling of 1111255145 in words is "one billion, one hundred eleven million, two hundred fifty-five thousand, one hundred forty-five".