1145054111 has 4 divisors (see below), whose sum is σ = 1145124552. Its totient is φ = 1144983672.

The previous prime is 1145054107. The next prime is 1145054137. The reversal of 1145054111 is 1114505411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1145054111 - 2² = 1145054107 is a prime.

It is a super-2 number, since 2×1145054111² = 2622297834236000642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145054311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960 + ... + 47946.

It is an arithmetic number, because the mean of its divisors is an integer number (286281138).

Almost surely, 2^1145054111 is an apocalyptic number.

1145054111 is a deficient number, since it is larger than the sum of its proper divisors (70441).

1145054111 is an equidigital number, since it uses as much as digits as its factorization.

1145054111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70440.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 1145054111 is about 33838.6481851743. The cubic root of 1145054111 is about 1046.1854364888.

Adding to 1145054111 its reverse (1114505411), we get a palindrome (2259559522).

The spelling of 1145054111 in words is "one billion, one hundred forty-five million, fifty-four thousand, one hundred eleven".